Kontsevich invariant

Fukaya category of a Hamiltonian fibration (Lecture – 01) by Yasha Savelyev

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Fukaya category of a Hamiltonian fibration (Lecture – 02) by Yasha Savelyev

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Lagrangian Floer theory (Lecture – 02) by Sushmita Venugopalan

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

18. Invariants problems numbers 35-39.

I had a disaster for the first time since I've been doing this, which was to spend about an hour and a half recording a video, as I thought, only to discover that I had not pressed the record button. The selection this time turned out to consist of four problems that were uninteresting bec

From playlist Thinking about maths problems in real time: mostly invariants problems

Homological Mirror Symmetry - Nicholas Sheridan

Nicholas Sheridan Massachusetts Institute of Technology; Member, School of Mathematics February 11, 2013 Mirror symmetry is a deep conjectural relationship between complex and symplectic geometry. It was first noticed by string theorists. Mathematicians became interested in it when string

From playlist Mathematics

Gromov–Witten Invariants and the Virasoro Conjecture. III by Ezra Getzler

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Maxim Kontsevich, Reflections, orthogonal and symplectic

Maxim KONTSEVICH (IHÉS) "Reflections, orthogonal and symplectic"

From playlist Après-midi en l'honneur de Victor KAC

Isocontact and isosymplectic immersions and embeddings by Mahuya Datta

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Delphine Moussard: Finite type invariants of knots in homology 3-spheres

Abstract: Résumé : For null-homologous knots in rational homology 3-spheres, there are two equivariant invariants obtained by universal constructions à la Kontsevich, one due to Kricker and defined as a lift of the Kontsevich integral, and the other constructed by Lescop by means of integr

From playlist Topology

Bertrand Eynard - 3/4 Topological Recursion, from Enumerative Geometry to Integrability

https://indico.math.cnrs.fr/event/3191/ Topological recursion (TR) is a remarkable universal recursive structure that has been found in many enumerative geometry problems, from combinatorics of maps (discrete surfaces), to random matrices, Gromov-Witten invariants, knot polynomials, confor

From playlist Bertrand Eynard - Topological Recursion, from Enumerative Geometry to Integrability

Bertrand Eynard - 2/4 Topological Recursion, from Enumerative Geometry to Integrability

https://indico.math.cnrs.fr/event/3191/ Topological recursion (TR) is a remarkable universal recursive structure that has been found in many enumerative geometry problems, from combinatorics of maps (discrete surfaces), to random matrices, Gromov-Witten invariants, knot polynomials, confor

From playlist Bertrand Eynard - Topological Recursion, from Enumerative Geometry to Integrability

Gromov–Witten Invariants and the Virasoro Conjecture - II (Remote Talk) by Ezra Getzler

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Tom Bridgeland: Wall-crossing for Donaldson-Thomas invariants

Abstract: There is a very general story, due to Joyce and Kontsevich-Soibelman, which associates to a CY3 (three-dimensional Calabi-Yau) triangulated category equipped with a stability condition some rational numbers called Donaldson-Thomas (DT) invariants. The point I want to emphasise is

From playlist Mathematical Physics

Enumerative geometry via the moduli space of super Riemann surfaces - Prof.Norbury (U. of Melbourne)

Mumford initiated the calculation of many algebraic topological invariants over the moduli space of Riemann surfaces in the 1980s, and Witten related these invariants to two dimensional gravity in the 1990s. This viewpoint led Witten to a conjecture, proven by Kontsevich, that a generating

From playlist 2022 Summer Conference - Reflections on Geometry: 3-Manifolds, Groups and Singularities "A Conference in Honor of Walter Neumann"

Tony Yue Yu - 3/4 The Frobenius Structure Conjecture for Log Calabi-Yau Varieties

Notes: https://nextcloud.ihes.fr/index.php/s/pSQnsgx72a4S5zj 3/4 - Naive counts, tail conditions and deformation invariance. --- We show that the naive counts of rational curves in an affine log Calabi-Yau variety U, containing an open algebraic torus, determine in a surprisingly simple w

From playlist Tony Yue Yu - The Frobenius Structure Conjecture for Log Calabi-Yau Varieties

Symplectic homology, algebraic operations on (Lecture – 03) by Janko Latschev

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Symplectic homology, algebraic operations on it and their applications by Janko Latschev

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Symplectic homology, algebraic operations on it and their applications by Janko Latschev

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Transversality and super-rigidity in Gromov-Witten Theory by Chris Wendl

J-Holomorphic Curves and Gromov-Witten Invariants DATE:25 December 2017 to 04 January 2018 VENUE:Madhava Lecture Hall, ICTS, Bangalore Holomorphic curves are a central object of study in complex algebraic geometry. Such curves are meaningful even when the target has an almost complex stru

From playlist J-Holomorphic Curves and Gromov-Witten Invariants

Tony Yue Yu - 2/4 The Frobenius Structure Conjecture for Log Calabi-Yau Varieties

Notes: https://nextcloud.ihes.fr/index.php/s/8KTr2Mfdk22rpqX 2/4 - Skeletal curves: a key notion in the theory. --- We show that the naive counts of rational curves in an affine log Calabi-Yau variety U, containing an open algebraic torus, determine in a surprisingly simple way, a family

From playlist Tony Yue Yu - The Frobenius Structure Conjecture for Log Calabi-Yau Varieties