Lev Rozansky

Three-dimensional topological field theory and symplectic algebraic geometry I (2008)

Kapustin, Anton, Rozansky, Lev, Saulina, Natalia

We study boundary conditions and defects in a three-dimensional topological sigma-model with a complex symplectic target space X (the Rozansky-Witten model). We show that boundary conditions...

Virtual crossings, convolutions and a categorification of the SO(2N) Kauffman polynomial (2007)

Khovanov, Mikhail, Rozansky, Lev

We suggest a categorification procedure for the SO(2N) one-variable specialization of the two-variable Kauffman polynomial. The construction has many similarities with the HOMFLYPT categorification:...

Matrix factorizations and link homology II (2005)

Khovanov, Mikhail, Rozansky, Lev

To a presentation of an oriented link as the closure of a braid we assign a complex of bigraded vector spaces. The Euler characteristic of this complex (and of its triply-graded cohomology groups) is...

Matrix factorizations and link homology (2004)

Khovanov, Mikhail, Rozansky, Lev

For each positive integer n the HOMFLY polynomial of links specializes to a one-variable polynomial that can be recovered from the representation theory of quantum sl(n). For each such n we build a...

The Arhus Integral Of Rational Homology 3-Spheres Iii: (2003)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

Continuing the work started in [ A-I] and [ A-II], we prove the relationship between the Arhus integral and the invariant (henceforth called LMO) de ned by T.Q.T. Le, J. Murakami and T. Ohtsuki in...

The Århus Integral of Rational Homology 3-Spheres I: A Highly Non Trivial Flat Connection on S³ (2002)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

Path integrals do not really exist, but it is very useful to dream that they do and gure out the consequences. Apart from describing much of the physical world as we now know it, these dreams also...

The Arhus Integral Of Rational Homology 3-Spheres Ii: (2002)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

We continue the work started in [ A-I], and prove the invariance and universality in the class of nite type invariants of the object de ned and motivated there, namely the Arhus integral of rational...

The loop expansion of the Kontsevich integral, the null move and S-equivalence (2000)

Garoufalidis, Stavros, Rozansky, Lev

This is a substantially revised version. The Kontsevich integral of a knot is a graph-valued invariant which (when graded by the Vassiliev degree of graphs) is characterized by a universal property;...

The Århus Integral Of Rational Homology 3-Spheres I: A Highly Non Trivial Flat Connection On ... (1999)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

Path integrals do not really exist, but it is very useful to dream that they do, and figure out the consequences. Apart from describing much of the physical world as we now know it, these dreams also...

Wheels, Wheeling, And The Kontsevich Integral Of The Unknot (1999)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. We conjecture an exact formula for the Kontsevich integral of the unknot, and also conjecture a formula (also conjectured independently by Deligne [De]) for the relation between the two natural...

Witten–Reshetikhin–Turaev Invariants of¶Seifert Manifolds (1999)

Rozansky, Lev, Lawrence, Ruth

For Seifert homology spheres, we derive a holomorphic function of K whose value at integer K is the sl 2 Witten–Reshetikhin–Turaev invariant, Z K , at q= exp 2π i / K . This function is...

The Århus Integral Of Rational Homology 3-Spheres III: The Relation With The Le-Murakami-Ohtsuki Invariant (1999)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. Continuing the work started in [ A-I] and [ A-II], we prove the relationship between the Arhus integral and the invariant (henceforth called LMO) dened by T.Q.T. Le, J. Murakami and T. Ohtsuki in...

Wheels, Wheeling, And The Kontsevich Integral Of The Unknot (1999)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. We conjecture an exact formula for the Kontsevich integral of the unknot, and also conjecture a formula (also conjectured independently by Deligne [De]) for the relation between the two natural...

The Århus Integral Of Rational Homology 3-Spheres III: The Relation With The Le-Murakami-Ohtsuki Invariant (1998)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. Continuing the work started in [ A-I] and [ A-II], we prove the relationship between the Arhus integral and the invariantOmega (henceforth called LMO) defined by T.Q.T. Le, J. Murakami and T....

The Aarhus integral of rational homology 3-spheres III: The Relation with the Le-Murakami-Ohtsuki Invariant (1998)

Bar-Natan, Dror, Garoufalidis, Stavros, Rozansky, Lev, Thurston, Dylan P.

Continuing the work started in Part I and II of this series (see q-alg/9706004 and math.QA/9801049), we prove the relationship between the Aarhus integral and the invariant $\Omega$ (henceforth...

The Aarhus integral of rational homology 3-spheres II: Invariance and universality (1998)

Bar-Natan, Dror, Garoufalidis, Stavros, Rozansky, Lev, Thurston, Dylan

We continue the work started in part I (q-alg/9706004) and prove the invariance and universality in the class of finite type invariants of the object defined and motivated there, namely the Aarhus...

The Aarhus integral of rational homology 3-spheres I: A highly non trivial flat connection on S^3 (1997)

Bar-Natan, Dror, Garoufalidis, Stavros, Rozansky, Lev, Thurston, Dylan P.

Path integrals don't really exist, but it is very useful to dream that they do exist, and figure out the consequences. Apart from describing much of the physical world as we now know it, these dreams...

Wheels, Wheeling, And The Kontsevich Integral Of The Unknot (1997)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. We mix together the Kontsevich integral, chord diagrams, Chinese characters, the Reshetikhin-Turaev knot invariants, the Poincare-Birkhoff-Witt theorem, the HarishChandra isomorphism, the Duflo...

Wheels, Wheeling, and the Kontsevich Integral of the Unknot (1997)

Bar-Natan, Dror, Garoufalidis, Stavros, Rozansky, Lev, Thurston, Dylan P.

We conjecture an exact formula for the Kontsevich integral of the unknot, and also conjecture a formula (also conjectured independently by Deligne) for the relation between the two natural products...

Reshetikhin's Formula for the Jones Polynomial of a Link: Feynman diagrams and Milnor's Linking Numbers (1994)

Rozansky, Lev

We use Feynman diagrams to prove a formula for the Jones polynomial of a link derived recently by N.~Reshetikhin. This formula presents the colored Jones polynomial as an integral over the coadjoint...

A Contribution of the Trivial Connection to the Jones Polynomial and Witten's Invariant of 3d Manifolds II (1994)

Rozansky, Lev

We extend the results of our previous paper from knots to links by using a formula for the Jones polynomial of a link derived recently by N. Reshetikhin. We illustrate this formula by an example of a...

Witten's Invariant of 3-Dimensional Manifolds: Loop Expansion and Surgery Calculus (1994)

Rozansky, Lev

We review two different methods of calculating Witten's invariant: a stationary phase approximation and a surgery calculus. We give a detailed description of the 1-loop approximation formula for...

A Contribution of the Trivial Connection to Jones Polynomial and Witten's Invariant of 3d Manifolds I (1994)

Rozansky, Lev

We use the Chern-Simons quantum field theory in order to prove a recently conjectured limitation on the 1/K expansion of the Jones polynomial of a knot and its relation to the Alexander polynomial....

A Large k Asymptotics of Witten's Invariant of Seifert Manifolds (1993)

Rozansky, Lev

We calculate a large $k$ asymptotic expansion of the exact surgery formula for Witten's $SU(2)$ invariant of Seifert manifolds. The contributions of all flat connections are identified. An agreement...

Reidemeister torsion, the Alexander polynomial and $U(1,1)$ Chern-Simons theory (1992)

Rozansky, Lev, Saleur, Herbert

We show that the $U(1,1)$ (super) Chern Simons theory is one loop exact. This provides a direct proof of the relation between the Alexander polynomial and analytic and Reidemeister torsion. We then...

R-matrix Approach to Quantum Superalgebras su_{q}(m|n) (1992)

Chang, D., Phillips, I., Rozansky, Lev

Quantum superalgebras $su_{q}(m\mid n)$ are studied in the framework of $R$-matrix formalism. Explicit parametrization of $L^{(+)}$ and $L^{(-)}$ matrices in terms of $su_{q}(m\mid n)$ generators are...

S and T matrices for the super $U(1,1)$ WZW model. Application to surgery and 3-manifold invariants based on the Alexander Conway polynomial (1992)

Rozansky, Lev, Saleur, Herbert

We carry on the study of the Alexander Conway invariant from the quantum field theory point of view started in \cite{RS91}. We first discuss in details $S$ and $T$ matrices for the $U(1,1)$ super WZW...

The Århus Integral Of Rational Homology 3-Spheres II: Invariance And Universality (1970)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. We continue the work started in [ A-I], and prove the invariance and universality in the class of finite type invariants of the object defined and motivated there, namely the Arhus integral of...

The Århus Integral Of Rational Homology 3-Spheres I: A Highly Non Trivial Flat Connection On S³ (1970)

Dror Bar-natan, Stavros Garoufalidis, Lev Rozansky, P. Thurston

. Path integrals don't really exist, but it is very useful to dream that they do exist, and figure out the consequences. Apart from describing much of the physical world as we now know it, these...