Nikeghbali, Ashkan; University Of Zurich; Ashkan.nikeghbali@math.uzh.ch, Yor, Marc; Universite Paris 6; Dea@proba.jussieu.fr
We give a probabilistic interpretation for the Barnes G-function which appears in random matrix theory and in analytic number theory in the important moments conjecture due to Keating-Snaith for the...
Baker, David; Université Pierre Et Marie Curie; David.baker@etu.upmc.fr, Yor, Marc; Université Pierre Et Marie Curie; Deaproba@proba.jussieu.fr
We construct a martingale which has the same marginals as the arithmetic average of geometric Brownian motion.This provides a short proof of the recent result due to P. Carr et al that the arithmetic...
Around Tsirelson's equation, or: The evolution process may not explain everything (2009)
We present a synthesis of a number of developments which have been made around the celebrated Tsirelson's equation (1975), conveniently modified in the framework of a Markov chain taking values in a...
A global view of Brownian penalisations (2009)
Najnudel, Joseph, Roynette, Bernard, Yor, Marc
In this monograph, we construct and study a sigma-finite measure on continuous functions from R_+ to R, strongly related to many probability measures obtained by penalisation of Brownian motion, i.e....
Renewal series and square-root boundaries for Bessel processes (2008)
Enriquez, Nathanael; Universite Paris 10; Nenriquez@u-paris10.fr, Sabot, Christophe; Université De Lyon 1; Sabot@math.univ-lyon1.fr, Yor, Marc; Universite Paris 6; Deaproba@proba.jussieu.fr
We show how a description of Brownian exponential functionals as a renewal series gives access to the law of the hitting time of a square-root boundary by a Bessel process. This extends classical...
Yano, Kouji, Yano, Yuko, Yor, Marc
Several aspects of the laws of first hitting times of points are investigated for one-dimensional symmetric stable L\'evy processes. It\^o's excursion theory plays a key role in this study.
Measuring the "non-stopping timeness" of ends of previsible sets (2008)
In this paper, we propose several "measurements" of the "non-stopping timeness" of ends g of previsible sets, such that g avoids stopping times, in an ambiant filtration. We then study several...
Call option prices based on Bessel processes (2008)
As a complement to some recent work by Pal and Protter, "Strict local martingales, bubbles, and no early exercise", we show that the call option prices associated with the Bessel strict local...
Penalising symmetric stable L\'evy paths (2008)
Yano, Kouji, Yano, Yuko, Yor, Marc
Limit theorems for the normalized laws with respect to two kinds of weight functionals are studied for any symmetric stable L\'evy process of index $ 1 < \alpha \le 2 $. The first kind is a function...
These notes are the second half of the contents of the course given by the second author at the Bachelier Seminar (8-15-22 February 2008) at IHP. They also correspond to topics studied by the first...
Renewal series and square-root boundaries for Bessel processes (2008)
Enriquez, Nathanael, Sabot, Christophe, Yor, Marc
We show how a description of Brownian exponential functionals as a renewal series gives access to the law of the hitting time of a square-root boundary by a Bessel process. This extends classical...
These notes are the first half of the contents of the course given by the second author at the Bachelier Seminar (February 8-15-22 2008) at IHP. They also correspond to topics studied by the first...
On the time to reach maximum for a variety of constrained Brownian motions (2008)
Majumdar, Satya. N., Randon-Furling, Julien, Kearney, Michael J., Yor, Marc
We derive P(M,t_m), the joint probability density of the maximum M and the time t_m at which this maximum is achieved for a class of constrained Brownian motions. In particular, we provide explicit...
IMS Lecture Notes Monograph (2008)
Some properties of the arc-sine law related to its invariance under a family of rational maps ∗
THE TWO-PARAMETER POISSON–DIRICHLET DISTRIBUTION DERIVED FROM (2008)
A Stable Subordinator, Jim Pitman, Marc Yor
The two-parameter Poisson–Dirichlet distribution, denoted PD�α � θ�, is a probability distribution on the set of decreasing positive sequences with sum 1. The usual Poisson–Dirichlet...
This article appeared in Itô’s Stochastic Calculus and Probability (2008)
Jim Pitman, Marc Yor, Edited N. Ikeda, S. Watanabe, M. Fukushima
reprinted from the original tex source, August 3, 2004
On the time to reach maximum for a variety of constrained Brownian motions (2008)
Majumdar, Satya. N., Randon-Furling, Julien, Kearney, Michael J., Yor, Marc
We derive P(M,t_m), the joint probability density of the maximum M and the time t_m at which this maximum is achieved for a class of constrained Brownian motions. In particular, we provide explicit...
On the time to reach maximum for a variety of constrained Brownian motions (2008)
Majumdar, Satya. N., Randon-Furling, Julien, Kearney, Michael J., Yor, Marc
We derive P(M,t_m), the joint probability density of the maximum M and the time t_m at which this maximum is achieved for a class of constrained Brownian motions. In particular, we provide explicit...
Madan, D., Roynette, Bernard, Yor, Marc
The celebrated Black-Scholes formula which gives the price of a European option, may be expressed as the cumulative function of a last passage time of Brownian motion. A related result involving...
Madan, D., Roynette, Bernard, Yor, Marc
The celebrated Black-Scholes formula which gives the price of a European option, may be expressed as the cumulative function of a last passage time of Brownian motion. A related result involving...
Local limit theorems for Brownian additive functionals and penalisation of Brownian paths, IX (2008)
We obtain a local limit theorem for the laws of a class of Brownian additive functionals and we apply this result to a penalisation problem. We study precisely the case of the additive functional :...
A global view of Brownian penalisations (2008)
Najnudel, J., Roynette, Bernard, Yor, Marc
pas de résumé
Local limit theorems for Brownian additive functionals and penalisation of Brownian paths, IX (2008)
We obtain a local limit theorem for the laws of a class of Brownian additive functionals and we apply this result to a penalisation problem. We study precisely the case of the additive functional :...
A global view of Brownian penalisations (2008)
Najnudel, J., Roynette, Bernard, Yor, Marc
pas de résumé
From Black-Scholes formula, to local times and last passage times for certain submartingales (2008)
Madan, D., Roynette, Bernard, Yor, Marc
Motivated by an expression of the standard Black-Scholes formula as (a multiple of) the cumulative function of a certain distribution on $\/Bbb R_+$, we discuss a general extension of this identity...
From Black-Scholes formula, to local times and last passage times for certain submartingales (2008)
Madan, D., Roynette, Bernard, Yor, Marc
Motivated by an expression of the standard Black-Scholes formula as (a multiple of) the cumulative function of a certain distribution on $\/Bbb R_+$, we discuss a general extension of this identity...
We penalise Brownian motion by a function of its one-sided supremum considered up to the last zero before $t$, resp. first zero after $t$, of that Brownian motion. This study presents some analogy...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We develop a Brownian penalisation procedure related to weight processes $(F_t$) of the type : $F_t := f(I_t, S_t) where $f$ is a bounded function with compact support and $S_t (resp. I_t)$ is the...
We penalise Brownian motion by a function of its one-sided supremum considered up to the last zero before $t$, resp. first zero after $t$, of that Brownian motion. This study presents some analogy...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We develop a Brownian penalisation procedure related to weight processes $(F_t$) of the type : $F_t := f(I_t, S_t) where $f$ is a bounded function with compact support and $S_t (resp. I_t)$ is the...
Madan, D., Roynette, Bernard, Yor, Marc
The authors recently discovered some interesting relations between the Black-Scholes formula and last passage times of the Brownian exponential martingales, which invites one to seek analogous...
Madan, D., Roynette, Bernard, Yor, Marc
The authors recently discovered some interesting relations between the Black-Scholes formula and last passage times of the Brownian exponential martingales, which invites one to seek analogous...
These notes are the first half of the contents of the course given by the second author at the Bachelier Seminar (February 8-15-22 2008) at IHP. They also correspond to topics studied by the first...
These notes are the first half of the contents of the course given by the second author at the Bachelier Seminar (February 8-15-22 2008) at IHP. They also correspond to topics studied by the first...
These notes are the second half of the contents of the course given by the second author at the Bachelier Seminar (8-15-22 February 2008) at IHP. They also correspond to topics studied by the first...
A family of generalized gamma convoluted variables (2008)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
This paper consists of three parts: in the first part, we describe a family of generalized gamma convoluted (abbreviated as GGC) variables. In the second part, we use this description toprove that...
Renewal series and square-root boundaries for Bessel processes (2008)
Enriquez, Nathanael, Sabot, Christophe, Yor, Marc
We show how a description of Brownian exponential functionals as a renewal series gives access to the law of the hitting time of a square-root boundary by a Bessel process. This extends classical...
These notes are the second half of the contents of the course given by the second author at the Bachelier Seminar (8-15-22 February 2008) at IHP. They also correspond to topics studied by the first...
A family of generalized gamma convoluted variables (2008)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
This paper consists of three parts: in the first part, we describe a family of generalized gamma convoluted (abbreviated as GGC) variables. In the second part, we use this description toprove that...
Renewal series and square-root boundaries for Bessel processes (2008)
Enriquez, Nathanael, Sabot, Christophe, Yor, Marc
We show how a description of Brownian exponential functionals as a renewal series gives access to the law of the hitting time of a square-root boundary by a Bessel process. This extends classical...
Madan, D., Roynette, Bernard, Yor, Marc
For a large class of $\mathbb{R}_{+}$ valued, continuous local martingales $(M_{t}\; t \ge 0)$, with $M_{0} =1$ and $M_{\infty} = 0$, the put quantity : $\Pi_{M} (K,t) = E \big((K-M_{t})^{+} \big)$...
Madan, D., Roynette, Bernard, Yor, Marc
For a large class of $\mathbb{R}_{+}$ valued, continuous local martingales $(M_{t}\; t \ge 0)$, with $M_{0} =1$ and $M_{\infty} = 0$, the put quantity : $\Pi_{M} (K,t) = E \big((K-M_{t})^{+} \big)$...
Existence and properties of pseudo-inverses for Bessel and related processes (2008)
It is shown that the tail probability of a Bessel process is the distributio function of a random time which is related to first and last passage times of Bessel processes
An interesting family of Black-Scholes perpetuities (2008)
We obtain the Laplace transform and integrability properties of the integral over $\Bbb R_+$ of the call quantity associated with geometric Brownian motion with negative drift, thus adding a new...
Existence and properties of pseudo-inverses for Bessel and related processes (2008)
It is shown that the tail probability of a Bessel process is the distributio function of a random time which is related to first and last passage times of Bessel processes
An interesting family of Black-Scholes perpetuities (2008)
We obtain the Laplace transform and integrability properties of the integral over $\Bbb R_+$ of the call quantity associated with geometric Brownian motion with negative drift, thus adding a new...
We construct a martingale which has the same marginals as the arithmetic average of geometric Brownian motion. This provides a short proof of the recent result due to P. Carr et al [5] that the...
We construct a martingale which has the same marginals as the arithmetic average of geometric Brownian motion. This provides a short proof of the recent result due to P. Carr et al [5] that the...
motions motivated by models of insider trading 1 (2007)
transformations of two independent Brownian
Path decompositions of a Brownian bridge related to the ratio of its maximum and amplitude (2007)
We give two new proofs of Cs'aki's formula for the law of the ratio 1 \Gamma Q of the maximum relative to the amplitude (i.e. the maximum minus minimum) for a standard Brownian bridge. The...
Hans Follmer, Ching-tang Wu, Marc Yor
We show the existence, for any k 2 N, of processes which have the same k-marginals as Brownian motion, although they are not Brownian motions. For k = 4, this proves a conjecture of Stoyanov. The law...
The joint law of the last zeros of Brownian motion and of its Lévy transform (2007)
Catherine Donati-Martin, Zhan Shi, Marc Yor
for a number of recent studies. As is well-known, in the particular case ¯ = 1, (B (1) t ; t 0), the L'evy transform of B, is a Brownian motion, and some interest in the pair (B; B (1) ) stems...
An explicit Skorokhod embedding for the age of (2007)
Paris Cnrs (umr, J. Obloj, M. Yor, Warszawa Poland, Marc Yor
Brownian excursions and Azéma martingale
Asset Prices are Brownian motion: Business Time.* (2007)
Only In, Helyette Geman, Dilip B. Madan, Marc Yor
This paper argues that asset price processes arising from market clearing conditions should be modeled as pure jump processes, with no continuous martingale component. However, we show that...
This paper reviews known results which connect Riemann's integral representations of his zeta function, involving Jacobi's theta function and its derivatives, to some particular probability...
and the times spent by X above and below level y up to time (2007)
Hitting, occupation, and inverse local times of one-dimensional diffusions: martingale and
Hans Follmer, Ching-tang Wu, Marc Yor
We show the existence, for any k 2 N, of processes which have the same k-marginals as Brownian motion, although they are not Brownian motions. For k = 4, this proves a conjecture of Stoyanov. The law...
motions motivated by models of insider trading 1 (2007)
Hans Follmer, Ching-tang Wu, Marc Yor
transformations of two independent Brownian
Where Did The Brownian Particle Go? (2007)
Robin Pemantle, Yuval Peres, Jim Pitman, Marc Yor
Consider the radial projection onto the unit sphere of the path a d-dimensional Brownian motion W, started at the center of the sphere and run for unit time. Given the occupation measure of this...
the relative lengths of excursions derived from a stable subordinator
This paper reviews known results which connect Riemann's integral representations of his zeta function, involving Jacobi's theta function and its derivatives, to some particular probability...
Where Did The Brownian Particle Go? (2007)
Robin Pemantle Yuval, Yuval Peres, Jim Pitman, Marc Yor
Consider the radial projection onto the unit sphere of the path a d-dimensional Brownian motion W , started at the center of the sphere and run for unit time.
SOME MARTINGALES ASSOCIATED TO REFLECTED LÉVY PROCESSES (2007)
Paris Cnrs (umr, Laurent Nguyen-ngoc, Marc Yor
Some martingales associated to reflected Lévy processes L. NGUYEN-NGOC & M. YOR NOVEMBRE 2003
Generalized Gamma Convolutions, Dirichlet means, Thorin measures, with explicit examples (2007)
James, Lancelot F., Roynette, Bernard, Yor, Marc
In Section 1, we present a number of classical results concerning the Generalized Gamma Convolution (:GGC) variables, their Wiener-Gamma representations, and relation with the Dirichlet processes.To...
We give a probabilistic interpretation for the Barnes G-function which appears in random matrix theory and in analytic number theory in the important moments conjecture due to Keating-Snaith for the...
Quasi-invariance properties of a class of subordinators (2007)
Von Renesse, Max-K., Yor, Marc, Zambotti, Lorenzo
We study absolute-continuity properties of a class of stochastic processes, including the gamma and the Dirichlet processes. We prove that the laws of a general class of non-linear transformations of...
The characteristic polynomial of a random unitary matrix: a probabilistic approach (2007)
Bourgade, Paul, Hughes, Chris, Nikeghbali, Ashkan, Yor, Marc
In this paper, we propose a probabilistic approach to the study of the characteristic polynomial of a random unitary matrix. We recover the Mellin Fourier transform of such a random polynomial, first...
Burkholder's submartingales from a stochastic calculus perspective (2007)
We provide a simple proof, as well as several generalizations, of a recent result by Davis and Suh, characterizing a class of continuous submartingales and supermartingales that can be expressed in...
Euler's formulae for ζ(2n) and products of Cauchy variables (2007)
Bourgade, Paul; Laboratoire De Probabilités Et Modèles Aléatoires, Université Paris 6; Paulbourgade@gmail.com, Fujita, Takahiko; Graduate School Of Commerce And Management, Hitotsubashi University; Takahikofujita@mta.biglobe.ne.jp, Yor, Marc; Laboratoire De Probabilités Et Modèles Aléatoires, Université Paris 6; Deaproba@proba.jussieu.fr
We show how to recover Euler's formula for ζ(2n), as well as Lχ4(2n+1), for any integer n, from the knowledge of the density of the product of independent standard Cauchy variables.
Euler's formulae for ζ(2n) and products of Cauchy variables (2007)
Bourgade, Paul; Laboratoire De Probabilités Et Modèles Aléatoires, Université Paris 6; Paulbourgade@gmail.com, Fujita, Takahiko; Graduate School Of Commerce And Management, Hitotsubashi University; Takahikofujita@mta.biglobe.ne.jp, Yor, Marc; Laboratoire De Probabilités Et Modèles Aléatoires, Université Paris 6; Deaproba@proba.jussieu.fr
We show how to recover Euler's formula for ζ(2n), as well as Lχ4(2n+1), for any integer n, from the knowledge of the density of the product of independent standard Cauchy variables.
Tilted stable subordinators, Gamma time changes and Occupation Time of rays by Bessel Spiders (2007)
We exhibit, in the form of some identities in law, some connections between tilted stable subordinators, time-changed by independent Gamma processes and the occupation times of Bessel spiders, or...
Euler's formula for zeta(2n) and Cauchy variables (2007)
Bourgade, Paul, Fujita, Takahiko, Yor, Marc
Euler's formulae for zeta(2n) are recovered from the computation in two dierent manners of the even moments of log(|C1C2|), for C1 and C2 two independent standard Cauchy variables. The method...
Two examples of functional penalisations of Brownian motion, VIII (2007)
On one hand, we penalise Brownian paths by a function of one-sided supremum of Brownian motion, considered up to the last, resp. the first, zero, before $t$, resp. after $t$. This study provides some...
Penalizing a BES(d) process (0 < d < 2) with a function of its local time, V (2007)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We study the penalization of a BES(d) process (0
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We give some extensions of Pitman's and Ray-Knight's theorems via a penalization procedure involving Brownian motion and its local time at 0
Donati-Martin, Catherine, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We precise the choice of constants in computations related to Bessel processes with dimension d=2(1-alpha), 0 < alpha < 1
Burkholder's submartingales from a stochastic calculus perspective (2007)
We provide a simple proof, as well as several generalizations, of a recent result by Davis and Suh, characterizing a class of continuous submartingales and supermartingales that can be expressed in...
Quasi-invariance properties of a class of subordinators (2007)
Von Renesse, Max-K., Yor, Marc, Zambotti, Lorenzo
We study absolute-continuity properties of a class of stochastic processes, including the gamma and the Dirichlet processes. We prove that the laws of a general class of non-linear transformations of...
Generalized Gamma convolutions, Dirichlet means, Thorin measures with explicit examples (2007)
James, L.F., Roynette, Bernard, Yor, Marc
In section 1, we present a number of classical results concerning the generalized Gamma convolution ( : GGC) variables, their Wiener-Gamma representations, and relation with Dirichlet processes. To a...
Generalized Gamma convolutions, Dirichlet means, Thorin measures with explicit examples (2007)
James, L.F., Roynette, Bernard, Yor, Marc
In section 1, we present a number of classical results concerning the generalized Gamma convolution ( : GGC) variables, their Wiener-Gamma representations, and relation with Dirichlet processes. To a...
Quasi-invariance properties of a class of subordinators (2007)
Von Renesse, Max-K., Yor, Marc, Zambotti, Lorenzo
We study absolute-continuity properties of a class of stochastic processes, including the gamma and the Dirichlet processes. We prove that the laws of a general class of non-linear transformations of...
Burkholder's submartingales from a stochastic calculus perspective (2007)
We provide a simple proof, as well as several generalizations, of a recent result by Davis and Suh, characterizing a class of continuous submartingales and supermartingales that can be expressed in...
Donati-Martin, Catherine, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We precise the choice of constants in computations related to Bessel processes with dimension d=2(1-alpha), 0 < alpha < 1
Penalizing a BES(d) process (0 < d < 2) with a function of its local time, V (2007)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We study the penalization of a BES(d) process (0
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We give some extensions of Pitman's and Ray-Knight's theorems via a penalization procedure involving Brownian motion and its local time at 0
Two examples of functional penalisations of Brownian motion, VIII (2007)
On one hand, we penalise Brownian paths by a function of one-sided supremum of Brownian motion, considered up to the last, resp. the first, zero, before $t$, resp. after $t$. This study provides some...
Euler's formula for zeta(2n) and Cauchy variables (2007)
Bourgade, Paul, Fujita, Takahiko, Yor, Marc
Euler's formulae for zeta(2n) are recovered from the computation in two dierent manners of the even moments of log(|C1C2|), for C1 and C2 two independent standard Cauchy variables. The method...
On the excursion theory for linear diffusions (2006)
Salminen, Paavo, Vallois, Pierre, Yor, Marc
We present a number of important identities related to the excursion theory of linear diffusions. In particular, excursions straddling an independent exponential time are studied in detail. Letting...
Arcsine Laws and Interval Partitions Derived from a Stable Subordinator (2006)
Lévy discovered that the fraction of time a standard one-dimensional Brownian motion B spends positive before time t has arcsine distribution, both for t a fixed time when Bt ≠ 0 almost surely,...
Bertoin, J., Fujita, T., Roynette, Bernard, Yor, Marc
The distributional properties of the duration of a recurrent Bessel process straddling an independent exponential time are studied in detail. Althrough our study may be considered as a particular...
Bertoin, J., Fujita, T., Roynette, Bernard, Yor, Marc
The distributional properties of the duration of a recurrent Bessel process straddling an independent exponential time are studied in detail. Althrough our study may be considered as a particular...
A chaotic representation property of the multidimensional Dunkl processes (2006)
Dunkl processes are martingales as well as c\`{a}dl\`{a}g homogeneous Markov processes taking values in $\mathbb{R}^d$ and they are naturally associated with a root system. In this paper we study the...
A chaotic representation property of the multidimensional Dunkl processes (2006)
Dunkl processes are martingales as well as càdlàg homogeneous Markov processes taking values in ℝd and they are naturally associated with a root system. In this paper we study the jumps of these...
Brownian motions defined as linear transformations of two independent Brownian motions are studied, together with certain orthogonal decompositions of Brownian filtrations.
Asymptotic laws for compositions derived from transformed subordinators (2006)
Gnedin, Alexander, Pitman, Jim, Yor, Marc
A random composition of n appears when the points of a random closed set ℛ̃⊂[0,1] are used to separate into blocks n points sampled from the uniform distribution. We study the number of parts Kn...
We describe the CGMY and Meixner processes as time changed Brownian motions. The CGMY uses a time change absolutely continuous with respect to the one-sided stable $(Y/2)$ subordinator while the...
We describe the CGMY and Meixner processes as time changed Brownian motions. The CGMY uses a time change absolutely continuous with respect to the one-sided stable $(Y/2)$ subordinator while the...
We describe the CGMY and Meixner processes as time changed Brownian motions. The CGMY uses a time change absolutely continuous with respect to the one-sided stable $(Y/2)$ subordinator while the...
Random times and enlargements of filtrations in a Brownian setting / Roger Mansuy, Marc Yor (2006)
Incluye bibliografía e índice
Bertoin, J., Fujita, T., Roynette, Bernard, Yor, Marc
The distributional properties of the duration of a recurrent Bessel process straddling an independent exponential time are studied in detail. Althrough our study may be considered as a particular...
We describe the CGMY and Meixner processes as time changed Brownian motions. The CGMY uses a time change absolutely continuous with respect to the one-sided stable $(Y/2)$ subordinator while the...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain probability measures on the canonical space penalizing the Wiener measure by a function of its maximum (resp. minimum, local time). We study the law of the canonical process under these new...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We determine the rate of decay of the expectation Z(t) of some multiplicative functional related to Brownian motion up to time t. This permits to prove that the Wiener measure, penalized by this...
In memoriam : Paul-Andre Meyer : Séminaire de probabilités XXXIX / M. Émery, M. Yor (Eds.) (2006)
Incluye bibliografía e índice
Random Matrices and the Riemann zeta function (2006)
These notes are based on a talk given at the Institut de Mathématiques Elie Cartan de Nancy in June 2006. Their purpose is to introduce the reader to some links between two fields of mathematics :...
Some Explicit Krein Representations of Certain Subordinators, Including the Gamma Process (2006)
Donati-Martin, Catherine, Yor, Marc
We give a representation of the Gamma subordinator as a Krein functional of Brownian motion, using the known representations for stable subordinators and Esscher transforms. In particular, we have...
On the excursion theory for linear diffusions (2006)
Salminen, Paavo, Vallois, Pierre, Yor, Marc
We present a number of important identities related to the excursion theory of linear diffusions. In particular, excursions straddling an independent exponential time are studied in detail. Letting...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain probability measures on the canonical space penalizing the Wiener measure by a function of its maximum (resp. minimum, local time). We study the law of the canonical process under these new...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We determine the rate of decay of the expectation Z(t) of some multiplicative functional related to Brownian motion up to time t. This permits to prove that the Wiener measure, penalized by this...
On the excursion theory for linear diffusions (2006)
Salminen, Paavo, Vallois, Pierre, Yor, Marc
We present a number of important identities related to the excursion theory of linear diffusions. In particular, excursions straddling an independent exponential time are studied in detail. Letting...
Random Matrices and the Riemann zeta function (2006)
These notes are based on a talk given at the Institut de Mathématiques Elie Cartan de Nancy in June 2006. Their purpose is to introduce the reader to some links between two fields of mathematics :...
Bertoin, J., Fujita, T., Roynette, Bernard, Yor, Marc
The distributional properties of the duration of a recurrent Bessel process straddling an independent exponential time are studied in detail. Althrough our study may be considered as a particular...
We describe the CGMY and Meixner processes as time changed Brownian motions. The CGMY uses a time change absolutely continuous with respect to the one-sided stable $(Y/2)$ subordinator while the...
Exponential functionals of Brownian motion, I: Probability laws at fixed time (2005)
Matsumoto, Hiroyuki, Yor, Marc
This paper is the first part of our survey on various results about the distribution of exponential type Brownian functionals defined as an integral over time of geometric Brownian motion. Several...
Exponential functionals of Brownian motion, II: Some related diffusion processes (2005)
Matsumoto, Hiroyuki, Yor, Marc
This is the second part of our survey on exponential functionals of Brownian motion. We focus on the applications of the results about the distributions of the exponential functionals, which have...
A note on a.s. finiteness of perpetual integral functionals of diffusions (2005)
In this note, with the help of the boundary classification of diffusions, we derive a criterion of the convergence of perpetual integral functionals of transient real-valued diffusions. In the...
A note on a.s. finiteness of perpetual integral functionals of diffusions (2005)
In this note, with the help of the boundary classification of diffusions, we derive a criterion of the convergence of perpetual integral functionals of transient real-valued diffusions. In the...
A note on a.s. finiteness of perpetual integral functionals of diffusions (2005)
In this note, with the help of the boundary classification of diffusions, we derive a criterion of the convergence of perpetual integral functionals of transient real-valued diffusions. In the...
Exponential functionals of Levy processes (2005)
This text surveys properties and applications of the exponential functional $\int_0^t\exp(-\xi_s)ds$ of real-valued L\'evy processes $\xi=(\xi_t,t\geq0)$.
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum, III (2005)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum, III (2005)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum, III (2005)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
Results of penalization of a one-dimensional Brownian motion $(X_t) $, by its one-sided maximum $\dis (S_t=\sup_{0 \leq u \leq t}X_u)$, which were recently obtained by the authors are improved with...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain probability measures on the canonical space penalizing the Wiener measure by a function of its maximum (resp. minimum, local time). We study the law of the canonical process under these new...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain probability measures on the canonical space penalizing the Wiener measure by a function of its maximum (resp. minimum, local time). We study the law of the canonical process under these new...
Limiting laws associated with Brownian motion perturbated by normalized exponential weights I (2005)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We determine the rate of decay of the expectation Z(t) of some multiplicative functional related to Brownian motion up to time t. This permits to prove that the Wiener measure, penalized by this...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain probability measures on the canonical space penalizing the Wiener measure by a function of its maximum (resp. minimum, local time). We study the law of the canonical process under these new...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We determine the rate of decay of the expectation Z(t) of some multiplicative functional related to Brownian motion up to time t. This permits to prove that the Wiener measure, penalized by this...
Roynette, Bernard, Vallois, Pierre, Yor, Marc
We determine the rate of decay of the expectation Z(t) of some multiplicative functional related to Brownian motion up to time t. This permits to prove that the Wiener measure, penalized by this...
Options on Hedge Funds under the High Water Mark Rule (2005)
Atlan, Marc, Geman, Hélyette, Yor, Marc
The rapidly growing hedge fund industry has provided individual and institutional investors with new investment vehicles and styles of management. It has also brought forward a new form of...
Options on Hedge Funds under the High Water Mark Rule (2005)
Atlan, Marc, Geman, Hélyette, Yor, Marc
The rapidly growing hedge fund industry has provided individual and institutional investors with new investment vehicles and styles of management. It has also brought forward a new form of...
Options on Hedge Funds under the High Water Mark Rule (2005)
Atlan, Marc, Geman, Hélyette, Yor, Marc
The rapidly growing hedge fund industry has provided individual and institutional investors with new investment vehicles and styles of management. It has also brought forward a new form of...
Further examples of explicit Krein representations of certain subordinators (2005)
Donati-Martin, Catherine, Yor, Marc
In a previous paper , we have shown that the gamma subordinators may be represented as inverse local times of certain diffusions. In the present paper, we give such representations for other...
Further examples of explicit Krein representations of certain subordinators (2005)
Donati-Martin, Catherine, Yor, Marc
In a previous paper , we have shown that the gamma subordinators may be represented as inverse local times of certain diffusions. In the present paper, we give such representations for other...
Further examples of explicit Krein representations of certain subordinators (2005)
Donati-Martin, Catherine, Yor, Marc
In a previous paper, we have shown that the gamma subordinators may be represented as inverse local times of certain diffusions. In the present paper, we give such representations for other...
A definition and some characteristic properties of pseudo-stopping times (2005)
Recently, Williams [Bull. London Math. Soc. 34 (2002) 610–612] gave an explicit example of a random time ρ associated with Brownian motion such that ρ is not a stopping time but...
Equivalent and absolutely continuous measure changes for jump-diffusion processes (2005)
Cheridito, Patrick, Filipovic, Damir, Yor, Marc
We provide explicit sufficient conditions for absolute continuity and equivalence between the distributions of two jump-diffusion processes that can explode and be killed by a potential.
Equivalent and absolutely continuous measure changes for jump-diffusion processes (2005)
Cheridito, Patrick, Filipović, Damir, Yor, Marc
We provide explicit sufficient conditions for absolute continuity and equivalence between the distributions of two jump-diffusion processes that can explode and be killed by a potential.
Perpetual Integral Functionals as Hitting and Occupation Times (2005)
Salminen, Paavo; Abo Akademi, Finland; Phsalmin@abo.fi, Yor, Marc; Université Pierre Et Marie Curie; Pitman@stat.berkeley.edu
Abstract. Let $X$ be a linear diffusion and $f$ a non-negative, Borel measurable function. We are interested in finding conditions on $X$ and $f$ which imply that the perpetual integral functional $$...
Wiener integrals for centered powers of Bessel processes, I (2005)
Funaki, Tadahisa, Hariya, Yuu, Yor, Marc, 舟木, 直久, 針谷, 祐, ヨー, マーク
Kyushu University 21st Century COE Program Development of Dynamic Mathematics with High Functionality
Some explicit Krein representations of certain subordinators, including the Gamma process (2005)
Donati-Martin, Catherine, Yor, Marc
We give a representation of the Gamma subordinator as a Krein functional of Brownian motion, using the known representations for stable subordinators and Esscher transforms. In particular, we have...
Some explicit Krein representations of certain subordinators, including the Gamma process (2005)
Donati-Martin, Catherine, Yor, Marc
We give a representation of the Gamma subordinator as a Krein functional of Brownian motion, using the known representations for stable subordinators and Esscher transforms. In particular, we have...
Some explicit Krein representations of certain subordinators, including the Gamma process (2005)
Donati-Martin, Catherine, Yor, Marc
We give a representation of the Gamma subordinator as a Krein functional of Brownian motion, using the known representations for stable subordinators and Esscher transforms. In particular, we have...
We present three new identities in law for quadratic functionals of conditioned bivariate Gaussian processes. In particular, our results provide a two-parameter generalization of a celebrated...
We present three new identities in law for quadratic functionals of conditioned bivariate Gaussian processes. In particular, our results provide a two-parameter generalization of a celebrated...
We present three new identities in law for quadratic functionals of conditioned bivariate Gaussian processes. In particular, our results provide a two-parameter generalization of a celebrated...
Exponential functionals of Brownian motion and disordered systems (2005)
Comtet, Alain, Monthus, Cecile, Yor, Marc
The paper deals with exponential functionals of the linear Brownian motion which arise in different contexts such as continuous time finance models and one-dimensional disordered models. We study...
Tanaka formula for symmetric Lévy processes (2005)
Starting from the potential theoretic definition of the local times of a Markov process - when these exist - we obtain a Tanaka formula for the local times of symmetric Lévy processes. The most...
Tanaka formula for symmetric Lévy processes (2005)
Starting from the potential theoretic definition of the local times of a Markov process - when these exist - we obtain a Tanaka formula for the local times of symmetric Lévy processes. The most...
Tanaka formula for symmetric L\'{e}vy processes (2005)
Starting from the potential theoretic definition of the local times of a Markov process - when these exist - we obtain a Tanaka formula for the local times of symmetric L\'{e}vy processes. The most...
Exponential functionals of Lévy processes (2005)
This text surveys properties and applications of the exponential functional ∫0texp(−ξs)ds of real-valued Lévy processes ξ=(ξt,t≥0).
Exponential functionals of Brownian motion, I: Probability laws at fixed time (2005)
Matsumoto, Hiroyuki, Yor, Marc
This paper is the first part of our survey on various results about the distribution of exponential type Brownian functionals defined as an integral over time of geometric Brownian motion. Several...
Exponential functionals of Brownian motion, II: Some related diffusion processes (2005)
Matsumoto, Hiroyuki, Yor, Marc
This is the second part of our survey on exponential functionals of Brownian motion. We focus on the applications of the results about the distributions of the exponential functionals, which have...
Séminaire de probabilités XXXVIII / M. Émery, M. Ledoux, M. Yor (eds.) (2005)
Incluye bibliografía e índice
A note on a.s. finiteness of perpetual integral functionals of diffusions (2005)
In this note, with the help of the boundary classification of diffusions, we derive a criterion of the convergence of perpetual integral functionals of transient real-valued diffusions. In the...
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum, III (2005)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum
Options on Hedge Funds under the High Water Mark Rule (2005)
Atlan, Marc, Geman, Hélyette, Yor, Marc
The rapidly growing hedge fund industry has provided individual and institutional investors with new investment vehicles and styles of management. It has also brought forward a new form of...
Further examples of explicit Krein representations of certain subordinators (2005)
Donati-Martin, Catherine, Yor, Marc
In a previous paper , we have shown that the gamma subordinators may be represented as inverse local times of certain diffusions. In the present paper, we give such representations for other...
Some explicit Krein representations of certain subordinators, including the Gamma process (2005)
Donati-Martin, Catherine, Yor, Marc
We give a representation of the Gamma subordinator as a Krein functional of Brownian motion, using the known representations for stable subordinators and Esscher transforms. In particular, we have...
We present three new identities in law for quadratic functionals of conditioned bivariate Gaussian processes. In particular, our results provide a two-parameter generalization of a celebrated...
Tanaka formula for symmetric Lévy processes (2005)
Starting from the potential theoretic definition of the local times of a Markov process - when these exist - we obtain a Tanaka formula for the local times of symmetric Lévy processes. The most...
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum, III (2005)
Roynette, Bernard, Vallois, Pierre, Yor, Marc
Limiting laws for long Brownian Bridges perturbed by their one-sided maximum
Options on Hedge Funds under the High Water Mark Rule (2005)
Atlan, Marc, Geman, Hélyette, Yor, Marc
The rapidly growing hedge fund industry has provided individual and institutional investors with new investment vehicles and styles of management. It has also brought forward a new form of...
A note on a.s. finiteness of perpetual integral functionals of diffusions (2005)
In this note, with the help of the boundary classification of diffusions, we derive a criterion of the convergence of perpetual integral functionals of transient real-valued diffusions. In the...
Further examples of explicit Krein representations of certain subordinators (2005)
Donati-Martin, Catherine, Yor, Marc
In a previous paper , we have shown that the gamma subordinators may be represented as inverse local times of certain diffusions. In the present paper, we give such representations for other...
Some explicit Krein representations of certain subordinators, including the Gamma process (2005)
Donati-Martin, Catherine, Yor, Marc
We give a representation of the Gamma subordinator as a Krein functional of Brownian motion, using the known representations for stable subordinators and Esscher transforms. In particular, we have...
We present three new identities in law for quadratic functionals of conditioned bivariate Gaussian processes. In particular, our results provide a two-parameter generalization of a celebrated...
Tanaka formula for symmetric Lévy processes (2005)
Starting from the potential theoretic definition of the local times of a Markov process - when these exist - we obtain a Tanaka formula for the local times of symmetric Lévy processes. The most...
Some Connections Between (Sub)Critical Branching Mechanisms and Bernstein Functions (2004)
Bertoin, Jean, Roynette, Bernard, Yor, Marc
We describe some connections, via composition, between two functional spaces: the space of (sub)critical branching mechanisms and the space of Bernstein functions. The functions ${\bf e}_\alpha: x\to...
Some Connections Between (Sub)Critical Branching Mechanisms and Bernstein Functions (2004)
Bertoin, Jean, Roynette, Bernard, Yor, Marc
We describe some connections, via composition, between two functional spaces: the space of (sub)critical branching mechanisms and the space of Bernstein functions. The functions ${\bf e}_\alpha: x\to...
Some Connections Between (Sub)Critical Branching Mechanisms and Bernstein Functions (2004)
Bertoin, Jean, Roynette, Bernard, Yor, Marc
We describe some connections, via composition, between two functional spaces: the space of (sub)critical branching mechanisms and the space of Bernstein functions. The functions ${\bf e}_\alpha: x\to...
Exponential Functionals of Lévy Processes (2004)
This text surveys properties and applications of the exponential functional $\int_{0}^{t}\exp(-\xi_s)ds$ of real-valued L\'evy processes $\xi=(\xi_t, t\geq0)$.
Exponential Functionals of Lévy Processes (2004)
This text surveys properties and applications of the exponential functional $\int_{0}^{t}\exp(-\xi_s)ds$ of real-valued L\'evy processes $\xi=(\xi_t, t\geq0)$.
On local martingale and its supremum: harmonic functions and beyond (2004)
We discuss certain facts involving a continuous local martingale $N$ and its supremum $\overline{N}$. A complete characterization of $(N,\overline{N})$-harmonic functions is proposed. This yields an...
On local martingale and its supremum: harmonic functions and beyond (2004)
We discuss certain facts involving a continuous local martingale $N$ and its supremum $\overline{N}$. A complete characterization of $(N,\overline{N})$-harmonic functions is proposed. This yields an...
On local martingale and its supremum: harmonic functions and beyond (2004)
We discuss certain facts involving a continuous local martingale $N$ and its supremum $\bar{N}$. A complete characterization of $(N,\bar{N})$-harmonic functions is proposed. This yields an important...
Harnesses, Levy bridges and Monsieur Jourdain (2004)
Relations between so-called harness processes and initial enlargements of the filtration of a Levy process with its positions at fixed times are investigated.
A definition and some characteristic properties of pseudo-stopping times (2004)
Recently, D. Williams \cite{williams} gave an explicit example of a random time $\rho $ associated with Brownian motion such that $\rho $ is not a stopping time but...
Where did the Brownian particle go? (2004)
Pemantle, Robin, Peres, Yuval, Pitman, Jim, Yor, Marc
Consider the radial projection onto the unit sphere of the path a d-dimensional Brownian motion W, started at the center of the sphere and run for unit time. Given the occupation measure mu of this...
Asymptotic laws for compositions derived from transformed subordinators (2004)
Gnedin, Alexander, Pitman, Jim, Yor, Marc
A random composition of $n$ appears when the points of a random closed set $\widetilde{\mathcal{R}}\subset[0,1]$ are used to separate into blocks $n$ points sampled from the uniform distribution. We...
Perpetual integral functionals as hitting and occupation times (2004)
Let $X$ be a linear diffusion and $f$ a non-negative, Borel measurable function. We are interested in finding conditions on $X$ and $f$ which imply that the perpetual integral functional $$...
Some properties of the Wishart processes and a matrix extension of the Hartman-Watson laws (2004)
Donati-Martin, Catherine, Doumerc, Yan, Matsumoto, Hiroyuki, Yor, Marc
The aim of this paper is to discuss for Wishart processes some properties which are analogues of the corresponding well-known ones for Bessel processes. In fact, we mainly concentrate on the local...
A parallel between Brownian bridges and gamma bridges (2004)
Some properties of the Gamma bridges (obtained by conditioning the Gamma subordinator to take a given value at a given time) are investigated; similarities with the Brownian bridges are emphasized.
Some Connections Between (Sub)Critical Branching Mechanisms and Bernstein Functions (2004)
Bertoin, Jean, Roynette, Bernard, Yor, Marc
We describe some connections, via composition, between two functional spaces: the space of (sub)critical branching mechanisms and the space of Bernstein functions. The functions ${\bf e}_\alpha: x\to...
Exponential Functionals of Lévy Processes (2004)
This text surveys properties and applications of the exponential functional $\int_{0}^{t}\exp(-\xi_s)ds$ of real-valued L\'evy processes $\xi=(\xi_t, t\geq0)$.
On local martingale and its supremum: harmonic functions and beyond (2004)
We discuss certain facts involving a continuous local martingale $N$ and its supremum $\overline{N}$. A complete characterization of $(N,\overline{N})$-harmonic functions is proposed. This yields an...
Some Connections Between (Sub)Critical Branching Mechanisms and Bernstein Functions (2004)
Bertoin, Jean, Roynette, Bernard, Yor, Marc
We describe some connections, via composition, between two functional spaces: the space of (sub)critical branching mechanisms and the space of Bernstein functions. The functions ${\bf e}_\alpha: x\to...
Exponential Functionals of Lévy Processes (2004)
This text surveys properties and applications of the exponential functional $\int_{0}^{t}\exp(-\xi_s)ds$ of real-valued L\'evy processes $\xi=(\xi_t, t\geq0)$.
On local martingale and its supremum: harmonic functions and beyond (2004)
We discuss certain facts involving a continuous local martingale $N$ and its supremum $\overline{N}$. A complete characterization of $(N,\overline{N})$-harmonic functions is proposed. This yields an...
Universit¶e Paris-Dauphine and ESSEC (2004)
Peter Carr, Dilip B. Madan, Marc Yor
We de¯ne the class of local L¶evy processes. These are L¶evy processes time changed by an inhomogeneous local speed function. The local speed function is a deterministic function of time and the...
A survey and some generalizations of Bessel processes (2003)
Göing-Jaeschke, Anja, Yor, Marc
Bessel processes play an important role in financial mathematics because of their strong relation to financial models such as geometric Brownian motion or Cox-Ingersoll-Ross processes. We are...
Matsumoto, Hiroyuki, Yor, Marc
Denote by αt(μ) the probability law of At(μ) = ∫0texp(2(Bs+μ s))ds for a Brownian motion {Bs, s ≥ 0}. It is well known that αt(μ) is of interest in a number of domains, e.g. mathematical...
Basic relations between the distributions of hitting, occupation and inverse local times of a one-dimensional diffusion process $X$, first discussed by It\^o and McKean, are reviewed from the...
A survey and some generalizations of Bessel processes (2003)
Bessel processes play an important role in financial mathematics because of their strong relation to financial processes like geometric Brownian motion or CIR processes. We are interested in the...
Making Markov martingales meet marginals: with explicit constructions (2002)
We present three generic constructions of martingales that all have the Markov property with known and prespecified marginal densities. These constructions are further invest\-igated for the special...
The fine structure of asset returns: an empirical investigation (2002)
Carr, Peter, Geman, Hélyette, Madan, Dilip B., Yor, Marc
We investigate the importance of diffusion and jumps in a new model for asset returns. In contrast to standard models, we allow for jump components displaying finite or infinite activity and...
The fine structure of asset returns: an empirical investigation (2002)
Carr, Peter, Geman, Hélyette, Madan, Dilip B., Yor, Marc
We investigate the importance of diffusion and jumps in a new model for asset returns. In contrast to standard models, we allow for jump components displaying finite or infinite activity and...
The fine structure of asset returns: an empirical investigation (2002)
Carr, Peter, Geman, Hélyette, Madan, Dilip B., Yor, Marc
We investigate the importance of diffusion and jumps in a new model for asset returns. In contrast to standard models, we allow for jump components displaying finite or infinite activity and...
The fine structure of asset returns: an empirical investigation (2002)
Carr, Peter, Geman, Hélyette, Madan, Dilip B., Yor, Marc
We investigate the importance of diffusion and jumps in a new model for asset returns. In contrast to standard models, we allow for jump components displaying finite or infinite activity and...
On independent times and positions for Brownian motions (2002)
De Meyer, Bernard, Roynette, Bernard, Vallois, Pierre, Yor, Marc
Let $(B_t ; t \ge 0)$, $\big(\mbox{resp. }((X_t, Y_t) ; t \ge 0)\big)$ be a one (resp. two) dimensional Brownian motion started at 0. Let $T$ be a stopping time such that $(B_{t \wedge T} ; t \ge 0)$...
Séminaire De Probabilités, Yor, Marc
Articles reprinted from the first fourteen Séminaires de Probabilités
Brownian motions defined as linear transformations of two independent Brownian motions are studied, together with certain orthogonal decompositions of Brownian filtrations
Bertoin, Jean; Universite Pierre Et Marie Curie; Jbe@ccr.jussieu.fr, Yor, Marc; Universite Pierre Et Marie Curie; Neil.O.connell@ens.fr
Let $xi$ be a subordinator with Laplace exponent $Phi$, $I=int_{0}^{infty}exp(-xi_s)ds$ the so-called exponential functional, and $X$ (respectively, $hat X$) the self-similar Markov process obtained...
A Representation for Non-Colliding Random Walks (2001)
O'Connell, Neil; BRIMS, HP Labs; Neil.O.connell@ens.fr, Yor, Marc; Universite Pierre Et Marie Curie; Neil.O.connell@ens.fr
We define a sequence of mappings $Gamma_k:D_0(R_+)^kto D_0(R_+)^k$ and prove the following result: Let $N_1,ldots,N_n$ be the counting functions of independent Poisson processes on $R_+$ with...
Large deviations for the Bessel clock (2001)
We show the law of large numbers, the central limit theorem and the large-deviation principle for the Bessel clock ∈t0t\rm d}s/(Rs(ν))2, where (Rt(ν), t≥0) is a Bessel process of index ν>0. We...
On the distribution of ranked heights of excursions of a Brownian bridge (2001)
The distribution of the sequence of ranked maximum and minimum values attained during excursions of a standard Brownian bridge $(B^{br}_t, 0 \le t \le 1)$ is described. The height $M^{br +}_j$of the...
Where Did the Brownian Particle Go? (2001)
Pemantle, Robin; Ohio State University; Pemantle@math.ohio_state.edu, Peres, Yuval; University Of California, Berkeley; Peres@stat.berkeley.edu, Pitman, Jim; University Of California, Berkeley; Pitman@stat.berkeley.edu, Yor, Marc; Université Pierre Et Marie Curie; Pitman@stat.berkeley.edu
Consider the radial projection onto the unit sphere of the path a $d$-dimensional Brownian motion $W$, started at the center of the sphere and run for unit time. Given the occupation measure $mu$ of...
Matsumoto, Hiroyuki, Yor, Marc
In Part I of this work, we have shown that the stochastic process $Z^{(\mu)}$ defined by (8.1) below is a diffusion process, which may be considered as an extension of Pitman's $2M-X$ theorem. In...
Donati-Martin, Catherine, Matsumoto, Hiroyuki, Yor, Marc
We present some absolute continuity relationships between the probability laws of a geometric Brownian motion $e^{(\mu)}=\{e_t^{(\mu)},t\geqq0\}$ and its images by certain transforms $T_\alpha$...
Yor, Marc, Ghomrasni, R., Donati-Martin, C.
We obtain a closed formula for the Laplace transform of the first moment of certain exponential functionals of Brownian motion with drift, which gives the price of Asian options. The proof relies on...
Casadio Tarabusi, Enrico, Figà Talamanca, Alessandro, Yor, Marc, Baldi, Paolo
We study the law of functionals whose prototype is ?0+8 eBs(?) dWs(µ), where B(?) and W(µ) are independent Brownian motions with drift. These functionals appear naturally in risk theory as well as...
Term structures of credit spreads with incomplete accounting information (2001)
Darrell Duffie, David L, Martin Jacobsen, Marliese Uhrig-homburg, Marc Yor, Josef Zechner, ...
Abstract: We study the implications of imperfect information for term structures of credit spreads on corporate bonds. We suppose that bond investors cannot observe the issuer’s assets directly,...
Banc of America Securities (2001)
Peter Carr, Dilip B. Madan, Marc Yor
Three processes re°ecting persistence of volatility are formulated by evaluating three L¶evy processes at a time change given by the integral of a square root process. A positive stock price...
Stochastic Volatility for Lévy Processes (2001)
Peter Carr, Hélyette Geman, Dilip B. Madan, Marc Yor
Three processes reecting persistence of volatility are formulated by evaluating three Levy processes at a time change given by the integral of a square root process. A positive stock price process is...
Some measure-valued Markov processes attached to occupation times of Brownian motion (2000)
Donati-Martin, Catherine, Yor, Marc
We study the positive random measure $\Pi_t (\omega, \d y) = l_t^{B_t -y}\d y$ , where $(l^a_t; a \in \R, t > 0)$ denotes the family of local times of the one-dimensional Brownian motion B. We prove...
Matsumoto, Hiroyuki, Yor, Marc
Let $\{B_t^{(\mu)},t\geqq0\}$ be a one-dimensional Brownian motion with constant drift $\mu\in{\bf R}$ starting from $0$. In this paper we show that $$ Z_t^{(\mu)} = \exp(-B_t^{(\mu)}) \int_0^t...
The Fine Structure of Asset Returns: An Empirical Investigation (2000)
Peter Carr, Hélyette Geman, Dilip B. Madan, Marc Yor
We investigate the relative importance of diffusion and jumps in a new jump diffusion model for asset returns. In contrast to the standard modelling of jumps for asset returns, the jump component of...
Time Changes Hidden In Brownian Subordination (2000)
Helyette Geman, Dilip B. Madan, Marc Yor
We consider Brownian motion evaluated at a time change given by an independent purely discontinuous subordinator and inquire into the relation between the quadratic variation of the process and the...
Some asymptotic properties of the local time of the uniform empirical process (1999)
Csörgö, Miklós, Shi, Zhan, Yor, Marc
We study the almost sure asymptotic properties of the local time of the uniform empirical process. In particular, we obtain two versions of the law of the iterated logarithm for the integral of the...
Matsumoto, Hiroyuki; Nagoya University; Matsu@info.human.nagoya-u.ac.jp, Yor, Marc; Universite Pierre Et Marie Curie; Neil.O.connell@ens.fr
Rogers-Pitman have shown that the sum of the absolute value of $B^{(mu)}$, Brownian motion with constant drift $mu$, and its local time $L^{(mu)}$ is a diffusion $R^{(mu)}$. We exploit the...
The Law of the Maximum of a Bessel Bridge (1999)
Pitman, Jim; University Of California, Berkeley; Pitman@stat.berkeley.edu, Yor, Marc; Université Pierre Et Marie Curie; Pitman@stat.berkeley.edu
Let $M_d$ be the maximum of a standard Bessel bridge of dimension $d$. A series formula for $P(M_d le a)$ due to Gikhman and Kiefer for $d = 1,2, ldots$ is shown to be valid for all real $d >0$....
Laplace transforms related to excursions of a one-dimensional diffusion (1999)
Various known expressions in terms of hyperbolic functions for the Laplace transforms of random times related to one-dimensional Brownian motion are derived in a unified way by excursion theory and...
Continuous Martingales and Brownian Motion (1999)
Libro de probabilidad. Contenido: Introducción; Martingalas; Procesos de Markov; Integración estocástica; Representación de martingalas; Hora media local; Generadores y tiempo de inversión;...
Abel transform and integrals of Bessel local times (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
Continuous Martingales and Brownian Motion / D. Revuz, M. Yor. (1999)
Libro de probabilidad. Contenido: Introducción; Martingalas; Procesos de Markov; Integración estocástica; Representación de martingalas; Hora media local; Generadores y tiempo de inversión;...
The laws of Brownian local time integrals (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain some identities in law and some limit theorems for integrals of the type $\int_{0}^{t}\varphi(s)d{\rm L}_{s}$. Here $\varphi$ is a positive locally bounded Borel function and ${\rm L}_{t}$...
Abel transform and integrals of Bessel local times (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We study integrals of the type $\int_{0}^{t}\varphi(s)dL_{s}$, where $\varphi$ is a positive locally bounded Borel function and $L_{t}$ denotes the local time at level 0 of a Bessel process of...
The laws of Brownian local time integrals (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain some identities in law and some limit theorems for integrals of the type $\int_{0}^{t}\varphi(s)d{\rm L}_{s}$. Here $\varphi$ is a positive locally bounded Borel function and ${\rm L}_{t}$...
Abel transform and integrals of Bessel local times (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We study integrals of the type $\int_{0}^{t}\varphi(s)dL_{s}$, where $\varphi$ is a positive locally bounded Borel function and $L_{t}$ denotes the local time at level 0 of a Bessel process of...
The laws of Brownian local time integrals (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain some identities in law and some limit theorems for integrals of the type $\int_{0}^{t}\varphi(s)d{\rm L}_{s}$. Here $\varphi$ is a positive locally bounded Borel function and ${\rm L}_{t}$...
Abel transform and integrals of Bessel local times (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We study integrals of the type $\int_{0}^{t}\varphi(s)dL_{s}$, where $\varphi$ is a positive locally bounded Borel function and $L_{t}$ denotes the local time at level 0 of a Bessel process of...
The laws of Brownian local time integrals (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We obtain some identities in law and some limit theorems for integrals of the type $\int_{0}^{t}\varphi(s)d{\rm L}_{s}$. Here $\varphi$ is a positive locally bounded Borel function and ${\rm L}_{t}$...
Abel transform and integrals of Bessel local times (1999)
Gradinaru, Mihai, Roynette, Bernard, Vallois, Pierre, Yor, Marc
We study integrals of the type $\int_{0}^{t}\varphi(s)dL_{s}$, where $\varphi$ is a positive locally bounded Borel function and $L_{t}$ denotes the local time at level 0 of a Bessel process of...
Laplace transforms related to excursions of a one-dimensional diffusion (1999)
Various known expressions in terms of hyperbolic functions for the Laplace transforms of random times related to one-dimensional Brownian motion are derived in a unified way by excursion theory and...
Philippe Biane, Jim Pitman, Marc Yor
This paper reviews known results which connect Riemann's integral representations of his zeta function, involving Jacobi's theta function and its derivatives, to some particular probability...
A Survey and Some Generalizations of Bessel Processes (1999)
Bessel processes play an important role in financial mathematics because of their strong relation to financial processes like geometric Brownian motion or CIR processes. We are interested in the...
Where Did The Brownian Particle Go? (1999)
Robin Pemantle, Yuval Peres, Jim Pitman, Marc Yor
Consider the radial projection onto the unit sphere of the path a d-dimensional Brownian motion W run for unit time. Given the occupation measure ¯ of this projected path, what can be said about the...
On the distribution of ranked heights of excursions of a Brownian bridge (1999)
The distribution of the sequence of ranked maximum and minimum values attained during excursions of a standard Brownian bridge (B br t ; 0 t 1) is described. The height M br+ j of the jth highest...
Philippe Biane, Jim Pitman, Marc Yor
Abstract. This paper reviews known results which connect Riemann’s integral representations of his zeta function, involving Jacobi’s theta function and its derivatives, to some particular...
Abstract We consider certain classes of linear transformations of two independent Brownian motions and study their canonical decomposition as semimartingales in their own filtration. In particular we...
Laplace transforms related to excursions of a one-dimensional diffusion (1999)
Various known expressions in terms of hyperbolic functions for the Laplace transforms of random times related to one-dimensional Brownian motion are derived in a uni ed way by excursion theory and...
Intégrales stochastiques de processus anticipants et projections duales prévisibles (1999)
We define a stochastic anticipating integral $\delta^\mu$ with respect to Brownian motion, associated to a non adapted increasing process $(\mu_t)$, with dual projection $t$. The integral $\delta^\mu...
Random Brownian scaling identities and splicing of Bessel processes (1998)
An identity in distribution due to Knight for Brownian motion is extended in two different ways: first by replacing the supremum of a reflecting Brownian motion by the range of an unreflected...
Exponential functionals of Brownian motion and disordered systems (1998)
Comtet, Alain, Monthus, Cécile, Yor, Marc
The paper deals with exponential functionals of the linear Brownian motion which arise in different contexts, such as continuous time finance models and one-dimensional disordered models. We study...
Autour d'un théorème de Tsirelson sur des filtrations browniennes et non browniennes (1998)
Barlow, Martin T., Émery, Michel, Knight, Frank B., Song, Shiqi, Yor, Marc
Quelques calculs de compensateurs impliquant l'injectivité de certains processus croissants (1998)
Azéma, Jacques, Jeulin, Thierry, Knight, Frank B., Yor, Marc
Beta-gamma random variables and intertwining relations between certain Markov processes (1998)
Yor, Marc, Petit, Frédérique, Carmona, Philippe
In this paper, we study particular examples of the intertwining relation Qt? = ?Pt between two Markov semi-groups (Pt, t = 0) defined respectively on (E,e) and (F,F), via the Markov kernel ?: (E,e) ?...
Random Brownian scaling identities and splicing of Bessel processes (1998)
Jim Pitman, Jim Pitman, Marc Yor, Marc Yor
An identity in distribution due to F. Knight for Brownian motion is extended in two different ways: firstly by replacing the supremum of a reflecting Brownian motion by the range of an unreflected...
On the laws of homogeneous functionals of the Brownian bridge (1998)
Philippe Carmona, Erique Petit, Jim Pitman, Marc Yor
Abstract. We develop a general and elementary method, which allows in particular to compute the distributions of a large number of interesting homogeneous functionals of the standard Brownian bridge....
The law of the maximum of a Bessel bridge (1998)
Let M ffi be the maximum of a standard Bessel bridge of dimension ffi . A series formula for P (M ffi a) due to Gikhman and Kiefer for ffi = 1; 2; : : : is shown to be valid for all real ffi ? 0....
Some Asymptotic Properties of the Local Time of the Uniform Empirical Process (1998)
Miklós Csörgo, Org O, Zhan Shi, Marc Yor
this paper we are interested in strong limit theorems for the local time of ff n . We first recall two important results. For notational convenience, we write
Random Brownian scaling identities and splicing of Bessel processes (1998)
Jim Pitman, Jim Pitman, Marc Yor, Marc Yor
An identity in distribution due to F. Knight for Brownian motion is extended in two di erent ways: rstly by replacing the supremum of a re ecting Brownian motion by the range of an unre ected...
Path decompositions of a Brownian bridge related to the ratio of its maximum and amplitude (1998)
We give two new proofs of Csaki's formula for the law of the ratio 1, Q of the maximum relative to the amplitude (i.e. the maximum minus minimum) for a standard Brownian bridge. The second of...
The two-parameter Poisson-Dirichlet distribution derived from a stable subordinator (1997)
The two-parameter Poisson-Dirichlet distribution, denoted $\mathsf{PD}(\alpha, \theta)$ is a probability distribution on the set of decreasing positive sequences with sum 1. The usual...
Séminaire de Probabilités XXXI / J. Azéma, M. Emery, M. Yor (eds.) (1997)
Azéma, Jacques, Emery, Michel, Yor, Marc
Incluye bibliografía
On the lengths of excursions of some Markov processes (1997)
Results are obtained regarding the distribution of the ranked lengths of component intervals in the complement of the random set of times when a recurrent Markov process returns to its starting...
On the distribution and asymptotic results for exponential functionals of Lévy processes (1997)
Philippe Carmona, Erique Petit, Marc Yor
Abstract. The aim of this note is to study the distribution and the asymptotic behavior of the exponential functional A t:= R t
On the distribution of ranked heights of excursions of a Brownian bridge (1997)
The distribution of the sequence of ranked maximum and minimum values attained during excursions of a standard Brownian bridge (B br t; 0 t 1) is described. The height M br+ j sion of the bridge has...
On the distribution of ranked heights of excursions of a Brownian bridge (1997)
The distribution of the sequence of ranked maximum and minimum values attained during excursions of a standard Brownian bridge �B br t � 0 ≤ t ≤ 1 � is described. The height M br+ j of the...
The two parameter Poisson–Dirichlet (1997)
distribution derived from a stable subordinator. by
Random Discrete Distributions Derived from Self-Similar Random Sets (1996)
Pitman, Jim; University Of California, Berkeley; Pitman@stat.berkeley.edu, Yor, Marc; Université Pierre Et Marie Curie; Pitman@stat.berkeley.edu
A model is proposed for a decreasing sequence of random variables $(V_1, V_2, cdots)$ with $sum_n V_n = 1$, which generalizes the Poisson-Dirichlet distribution and the distribution of ranked lengths...
Exponential functionals of Brownian motion and disordered systems (1996)
Comtet, Alain, Monthus, Cécile, Yor, Marc
The paper deals with exponential functionals of the linear Brownian motion which arise in different contexts such as continuous time finance models and one-dimensional disordered models. We study...
Exponential functionals of Brownian motion and disordered systems (1996)
Comtet, Alain, Monthus, Cecile, Yor, Marc
The paper deals with exponential functionals of the linear Brownian motion which arise in different contexts such as continuous time finance models and one-dimensional disordered models. We study...
Sur les processus croissants de type injectif (1996)
Azéma, Jacques, Jeulin, Thierry, Knight, Frank B., Mokobodzki, Gabriel, Yor, Marc
Séminaire de Probabilités XXX / J. Azéma, M. Emery, M. Yor (eds.) (1996)
Azéma, Jacques, Emery, Michel, Yor, Marc
Incluye bibliografía
Exponential functionals of Brownian motion and disordered systems (1996)
Comtet, Alain, Monthus, Cecile, Yor, Marc
The paper deals with exponential functionals of the linear Brownian motion which arise in different contexts such as continuous time finance models and one-dimensional disordered models. We study...
Random Discrete Distributions Derived From Self-Similar Random Sets (1996)
: A model is proposed for a decreasing sequence of random variables (V 1 ; V 2 ; \Delta \Delta \Delta) with P n V n = 1, which generalizes the Poisson-Dirichlet distribution and the distribution of...
To appearinSeminaire de Probabilites XXXI (1996)
On the relative lengths of excursions derived from a stable subordinator by
The two-parameter Poisson-Dirichlet distribution derived from a stable subordinator. (1995)
The two-parameter Poisson-Dirichlet distribution, denoted pd(ff; `), is a distribution on the set of decreasing positive sequences with sum 1. The usual Poisson-Dirichlet distribution with a single...
Séminaire de Probabilités XXVIII / J. Azéma, P. A. Meyer, M. Yor (eds.) (1994)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Le théorème d'arrêt en une fin d'ensemble prévisible (1993)
Azéma, Jacques, Jeulin, Thierry, Knight, Frank B., Yor, Marc
Séminaire de Probabilités XXVII / J. Azéma, P. A. Meyer, M. Yor (eds.) (1993)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Séminaire de probabilités XXVI / J. Azéma, P.A. Meyer, M. Yor (Eds.) (1992)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Séminaire de probabilités XXV / J. Azéma, P. A. Meyer, M. Yor (eds.) (1991)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Séminaire de Probabilités XXIV, 1988/89 / J. Azéma, P. A. Meyer, M. Yor (eds.) (1990)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Séminaire de probabilités XXIII / édité par J. Azéma, P.A. Meyer et M. Yor (1989)
Incluye bibliografía
Séminaire de Probabilités XXII / edité par J. Azéma, P. A. Meyer et M. Yor (1988)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Séminaire de Probabilités XXI / J. Azéma, P. A. Meyer, M. Yor (eds.) (1987)
Azéma, Jacques, Meyer, Paul André, Yor, Marc
Incluye bibliografía
Séminaire de Probabilités XX, 1984/85 / edité par J. Azéma et M. Yor (1986)
Incluye bibliografía
Hitting, occupation, and inverse local times of one-dimensional di usions: martingale and
Séminaire de Probabilités XIX / edité par J. Azéma, et M. Yor (eds.) (1985)
Incluye bibliografía
Yor, Marc, Séminarie De Probabilities
Incluye bibliografía
Séminaire de Probabilités XVIII, 1982/83 / edité par J. Azéma et M. Yor (1984)
Incluye bibliografía
Séminaire de Probabilités XVII, 1981/82 / edité par J. Azéma et M. Yor (1983)
Incluye bibliografía
Sur la transformée de Hilbert des temps locaux browniens et une extension de la formule d'Itô (1982)
Séminaire de Probabilités XIV, 1978/79 / edite par J. Azéma et M. Yor (1980)
Incluye bibliografía
Canonical decomposition of linear transformations of two independent Brownian motions
Föllmer, Hans, Wu, Ching-Tang, Yor, Marc
Motivated by the Kyle-Back model of “insider trading”, we consider certain classes of linear transformations of two independent Brownian motions and study their canonical decomposition as...
Canonical decomposition of linear transformations of two independent Brownian motions
Föllmer, Hans, Wu, Ching-Tang, Yor, Marc
Motivated by the Kyle-Back model of “insider trading”, we consider certain classes of linear transformations of two independent Brownian motions and study their canonical decomposition as...
Séminaire de Probabilités XVI, 1981/82 / edité par J. Azéma et M. Yor
Some vols. accompanied by supplements
Correlation and the pricing of risks
Marc Atlan, Hélyette Geman, Dilip Madan, Marc Yor
Kernel pricing, Change of measure, Catastrophic risk pricing, Self sufficient filtrations, G10, G12, G13,
Lévy processes in finance: a remedy to the non-stationarity of continuous martingales
In this note, we prove that under some minor conditions on $\sigma$, if a martingale $X_t = \int_0^t \sigma_u dW_u $ satisfies, for every given pair $u \geq 0, \, \xi \geq 0$,...
Comments on the life and mathematical legacy of Wolfgang Doeblin
This article contains the translation into English of the main results found in the Comptes Rendus Volume of December 2000, dedicated to Wolfgang Doeblin's sealed envelope sent to the Académie des...
Stochastic volatility, jumps and hidden time changes
Marc Yor, Dilip B. Madan, Hélyette Geman
Stochastic volatility and jumps are viewed as arising from Brownian subordination given here by an independent purely discontinuous process and we inquire into the relation between the realized...
Pricing options on realized variance
Peter Carr, Hélyette Geman, Dilip Madan, Marc Yor
Models which hypothesize that returns are pure jump processes with independent increments have been shown to be capable of capturing the observed variation of market prices of vanilla stock options...
Option prices as probabilities
Madan, D., Roynette, B., Yor, Marc
Four distribution functions are associated with call and put prices seen as functions of their strike and maturity. The random variables associated with these distributions are identified when the...
In this note, we show how to deduce some relationships between exponential functionals of Brownian motions with two different drifts from the case where the drifts are opposite from each other. We...
Interpretation via Brownian motion of some independence properties between GIG and gamma variables
Matsumoto, Hiroyuki, Yor, Marc
In the course of our investigations of exponential Brownian functionals (Nagoya Math. J. 162 (2001) 65) we noticed, with the help of some previous work by Letac and Seshadri (Z. Wahr. verw. Geb. 62...
On positive and negative moments of the integral of geometric Brownian motions
Donati-Martin, Catherine, Matsumoto, Hiroyuki, Yor, Marc
We present explicit formulae for the positive and negative moments of an exponential Wiener functional, which is defined as the integral with respect to time of geometric Brownian motion and plays an...
Measuring the "non-stopping timeness" of ends of previsible sets
In this paper, we propose several "measurements" of the "non-stopping timeness" of ends g of previsible sets, such that g avoids stopping times, in an ambiant filtration. We then study several...
These notes are the first half of the contents of the course given by the second author at the Bachelier Seminar (February 8-15-22 2008) at IHP. They also correspond to topics studied by the first...