Bernard Bercu

A multiple stochastic integral criterion for almost sure limit theorems (2009)

Bercu, Bernard, Nourdin, Ivan, Taqqu, Murad S.

In this paper, we study almost sure central limit theorems for multiple stochastic integrals and provide a criterion based on the kernel of these multiple integrals. We apply our result to normalized...

On the usefulness of persistent excitation in ARX adaptive tracking (2009)

Bercu, Bernard, Vazquez, Victor

The usefulness of persistent excitation is well-known in the control community. Thanks to a persistently excited adaptive tracking control, we show that it is possible to avoid the strong...

A multiple stochastic integral criterion for almost sure limit theorems (2009)

Bercu, Bernard, Nourdin, Ivan, Taqqu, Murad

In this paper, we study almost sure central limit theorems for multiple stochastic integrals and provide a criterion based on the kernel of these multiple integrals. We apply our result to normalized...

A multiple stochastic integral criterion for almost sure limit theorems (2009)

Bercu, Bernard, Nourdin, Ivan, Taqqu, Murad

In this paper, we study almost sure central limit theorems for multiple stochastic integrals and provide a criterion based on the kernel of these multiple integrals. We apply our result to normalized...

On the Almost Sure Central Limit Theorem for Vector Martingales: Convergence of Moments and Statistical Applications (2008)

Bercu, Bernard, Cénac, Peggy, Fayolle, Guy

We investigate the almost sure asymptotic properties of vector martingale transforms. Assuming some appropriate regularity conditions both on the increasing process and on the moments of the...

Sharp large deviations for the fractional Ornstein-Uhlenbeck process (2008)

Bercu, Bernard, Coutin, Laure, Savy, Nicolas

We investigate the sharp large deviation properties of the energy and the maximum likelihood estimator for the Ornstein-Uhlenbeck process driven by a fractional Brownian motion with Hurst index...

Almost Sure Stabilization for Adaptive Controls of Regime-switching LQ Systems with A Hidden Markov Chain (2008)

Bercu, Bernard, Dufour, Francois, Yin, G. George

This work is devoted to the almost sure stabilization of adaptive control systems that involve an unknown Markov chain. The control system displays continuous dynamics represented by differential...

Asymptotic analysis for bifurcating autoregressive processes via a martingale approach (2008)

Bercu, Bernard, De Saporta, Benoite, Gegout-Petit, Anne

We study the asymptotic behavior of the least squares estimators of the unknown parameters of bifurcating autoregressive processes. Under very weak assumptions on the driven noise of the process,...

A new concept of strong controllability via the Schur complement in adaptive tracking (2008)

Bercu, Bernard, Vazquez, Victor

We propose a new concept of strong controllability associated with the Schur complement of a suitable limiting matrix. This concept allows us to extend the previous results associated with...

Kernel density estimation and goodness-of-fit test in adaptive tracking (2008)

Bercu, Bernard, Portier, Bruno

We investigate the asymptotic properties of a recursive kernel density estimator associated with the driven noise of a linear regression in adaptive tracking. We provide an almost sure pointwise and...

A moment approach for the almost sure central limit theorem for martingales (2008)

Bercu, Bernard, Fort, Jean-Claude

We prove the almost sure central limit theorem for martingales via an original approach which uses the Carleman moment theorem together with the convergence of moments for powers of martingales....

Exponential inequalities for self-normalized martingales with applications (2008)

Bercu, Bernard, Touati, Abderrahmen

We propose several exponential inequalities for self-normalized martingales similar to those established by De la Pena. The keystone is the introduction of a new notion of random variable heavy on...

Fluctuations of Interacting Markov Chain Monte Carlo Models (2008)

Bercu, Bernard, Del Moral, Pierre, Doucet, Arnaud

We present a functional central limit theorem for a general class of interacting Markov chain Monte Carlo interpretations of discrete generation measure-valued equations. The path space models...

A Functional Central Limit Theorem for a Class of Interacting Markov Chain Monte Carlo Models (2008)

Bercu, Bernard, Del Moral, Pierre, Doucet, Arnaud

We present a functional central limit theorem for a new class of interaction Markov chain Monte Carlo interpretations of discrete generation measure valued equations. We provide an original...

Fluctuations of Interacting Markov Chain Monte Carlo Models (2008)

Bercu, Bernard, Del Moral, Pierre, Doucet, Arnaud

We present a functional central limit theorem for a general class of interacting Markov chain Monte Carlo interpretations of discrete generation measure-valued equations. The path space models...

A Functional Central Limit Theorem for a Class of Interacting Markov Chain Monte Carlo Models (2008)

Bercu, Bernard, Del Moral, Pierre, Doucet, Arnaud

We present a functional central limit theorem for a new class of interaction Markov chain Monte Carlo interpretations of discrete generation measure valued equations. We provide an original...

Exponential inequalities for self-normalized martingales with applications (2008)

Bercu, Bernard, Touati, Abderrahmen

We propose several exponential inequalities for self-normalized martingales similar to those established by De la Pena. The keystone is the introduction of a new notion of random variable heavy on...

Kernel density estimation and goodness-of-fit test in adaptive tracking (2008)

Bercu, Bernard, Portier, Bruno

We investigate the asymptotic properties of a recursive kernel density estimator associated with the driven noise of a linear regression in adaptive tracking. We provide an almost sure pointwise and...

A moment approach for the almost sure central limit theorem for martingales (2008)

Bercu, Bernard, Fort, Jean-Claude

We prove the almost sure central limit theorem for martingales via an original approach which uses the Carleman moment theorem together with the convergence of moments for powers of martingales....

On the Almost Sure Central Limit Theorem for Vector Martingales: Convergence of Moments and Statistical Applications (2008)

Bercu, Bernard, Cénac, Peggy, Fayolle, Guy

We investigate the almost sure asymptotic properties of vector martingale transforms. Assuming some appropriate regularity conditions both on the increasing process and on the moments of the...

On the Almost Sure Central Limit Theorem for Vector Martingales: Convergence of Moments and Statistical Applications (2008)

Bercu, Bernard, Cénac, Peggy, Fayolle, Guy

We investigate the almost sure asymptotic properties of vector martingale transforms. Assuming some appropriate regularity conditions both on the increasing process and on the moments of the...

A Functional Central Limit Theorem for a Class of Interacting Markov Chain Monte Carlo Models (2008)

Bercu, Bernard, Del Moral, Pierre, Doucet, Arnaud

We present a functional central limit theorem for a new class of interaction Markov chain Monte Carlo interpretations of discrete generation measure valued equations. We provide an original...

A Functional Central Limit Theorem for a Class of Interacting Markov Chain Monte Carlo Models (2008)

Bercu, Bernard, Del Moral, Pierre, Doucet, Arnaud

We present a functional central limit theorem for a new class of interaction Markov chain Monte Carlo interpretations of discrete generation measure valued equations. We provide an original...

Spectrum of the product of Toeplitz matrices with application in probability (2007)

Bercu, Bernard, Bony, Jean-Francois, Bruneau, Vincent

We study the spectrum of the product of two Toeplitz operators. Assume that the symbols of these operators are continuous and real-valued and that one of them is non-negative. We prove that the...

Exponential inequalities for self-normalized martingales with applications (2007)

Bercu, Bernard, Touati, Abderrahmen

We propose several exponential inequalities for self-normalized martingales similar to those established by De la Pe\~{n}a. The keystone is the introduction of a new notion of random variable heavy...

Asymptotic results for empirical measures of weighted sums of independent random variables (2007)

Bercu, Bernard; Universite Bordeaux 1; Bernard.Bercu@math.u-bordeaux1.fr, Bryc, Wlodek; University Of Cincinnati; Brycw@math.uc.edu

We investigate the asymptotic behavior of weighted sums of independent standardized random variables with uniformly bounded third moments. The sequence of weights is given by a family of rectangular...

Asymptotic results for empirical measures of weighted sums of independent random variables (2007)

Bercu, Bernard; Universite Bordeaux 1; Bernard.Bercu@math.u-bordeaux1.fr, Bryc, Wlodek; University Of Cincinnati; Brycw@math.uc.edu

We investigate the asymptotic behavior of weighted sums of independent standardized random variables with uniformly bounded third moments. The sequence of weights is given by a family of rectangular...

Asymptotic results for empirical measures of weighted sums of independent random variables (2006)

Bercu, Bernard, Bryc, Wlodzimierz

We prove that if a rectangular matrix with uniformly small entries and approximately orthogonal rows is applied to the independent standardized random variables with uniformly bounded third moments,...

Spectral properties of chaotic processes (2006)

Bercu, Bernard, Prieur, Clémentine

We investigate the spectral asymptotic properties of the stationary dynamical system $\xi_t=\varphi(T^t(X_0))$. This process is given by the iterations of a piecewise expanding map $T$ of the...

Spectral properties of chaotic processes (2006)

Bercu, Bernard, Prieur, Clémentine

We investigate the spectral asymptotic properties of the stationary dynamical system $\xi_t=\varphi(T^t(X_0))$. This process is given by the iterations of a piecewise expanding map $T$ of the...

Spectral properties of chaotic processes (2006)

Bercu, Bernard, Prieur, Clémentine

We investigate the spectral asymptotic properties of the stationary dynamical system $\xi_t=\varphi(T^t(X_0))$. This process is given by the iterations of a piecewise expanding map $T$ of the...

Convergence des moments dans le théorème de la limite centrale presque sûr pour les martingales vectorielles (2006)

Bercu, Bernard, Cénac, Peggy, Fayolle, Guy

In this report, new almost sure convergence properties for vectorial martingale transforms are established. Assuming some regularity conditions both on the increasing process and on the moments of...

Convergence des moments dans le théorème de la limite centrale presque sûr pour les martingales vectorielles (2006)

Bercu, Bernard, Cénac, Peggy, Fayolle, Guy

In this report, new almost sure convergence properties for vectorial martingale transforms are established. Assuming some regularity conditions both on the increasing process and on the moments of...

Convergence des moments dans le théorème de la limite centrale presque sûr pour les martingales vectorielles (2006)

Bercu, Bernard, Cénac, Peggy, Fayolle, Guy

In this report, new almost sure convergence properties for vectorial martingale transforms are established. Assuming some regularity conditions both on the increasing process and on the moments of...

Spectral properties of chaotic processes (2006)

Bercu, Bernard, Prieur, Clémentine

We investigate the spectral asymptotic properties of the stationary dynamical system $\xi_t=\varphi(T^t(X_0))$. This process is given by the iterations of a piecewise expanding map $T$ of the...

Kernel density estimation and goodness-of-fit test in adaptive tracking (2005)

Bercu, Bernard, Portier, Bruno

We investigate the asymptotic properties of a recursive kernel density estimator associated with the driven noise of a linear regression in adaptive tracking. We provide an almost sure pointwise and...

On Carleman approach for the almost sure central limit theorem for martingales (2005)

Bercu, Bernard, Fort, Jean-Claude

We prove the almost sure central limit theorem for martingales via an original approach which uses the Carleman moment theorem together with the convergence of moments for powers of martingales....

Kernel density estimation and goodness-of-fit test in adaptive tracking (2005)

Bercu, Bernard, Portier, Bruno

We investigate the asymptotic properties of a recursive kernel density estimator associated with the driven noise of a linear regression in adaptive tracking. We provide an almost sure pointwise and...

On Carleman approach for the almost sure central limit theorem for martingales (2005)

Bercu, Bernard, Fort, Jean-Claude

We prove the almost sure central limit theorem for martingales via an original approach which uses the Carleman moment theorem together with the convergence of moments for powers of martingales....

Concentration inequalities, large and moderate deviations for self-normalized empirical processes (2002)

Bercu, Bernard, Gassiat, Elisabeth, Rio, Emmanuel

We consider the supremum $\mathcal{W}_n$ of self-normalized empirical processes indexed by unbounded classes of functions $\mathcal{F}$. Such variables are of interest in various statistical...

On large deviations in the Gaussian autoregressive process: stable, unstable and explosive cases (2001)

Bercu, Bernard

For the Gaussian autoregressive process, the asymptotic behaviour of the Yule-Walker estimator is totally different in the stable, unstable and explosive cases. We show that, irrespective of this...