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Conferences and Recent Talks

Talks available in pdf:
  • Mixed Hodge polynomials of character varieties, June 2007, Aarhus
  • S-duality in hyperkähler Hodge theory, September 2006, Madrid
  • Cohomology of hyperkähler moduli spaces via arithmetic harmonic analysis (90 minutes talk), November 2005, Kyoto (various subsets in Oxford, Leeds, Glasgow, Edinburgh, Nagoya)
  • Betti numbers of hyperkähler manifolds via arithmetic harmonic analysis, (two talks) November 2005, Budapest, (various subsets in Paris, Grenoble, Montpellier, Oxford, Cambridge, London)
  • Cohomology of hyperkähler moduli spaces via arithmetic harmonic analysis, July 2005, Seattle
  • Cohomology of hyperkähler spaces in gauge theory, May 2005, Banff
  • Quaternionic Geometry of Matroids, May 2005, Calgary
  • Arithmetic harmonic analysis and cohomology of hyperkähler manifolds, April 2005, Santa Barbara, Urbana-Champaign, Toronto, Budapest
  • Cohomology of hyperkähler quotients, August 2004, Palo Alto
  • Quaternionic Geometry of Everything, April 2004, Houston

    2007

  • June 10-Aug 10, Rényi Institute, Budapest, Hungary
  • June 23 THÉORIE DE LIE, GÉOMÉTRIE ET REPRÉSENTATIONS, Colloque International, Institut de Mathématiques de Jussieu, Paris, France
  • June 18-22 Geometry and TQFT Aarhus, Denmark
  • June 4-8, Arithmetic harmonic analysis on character and quiver varieties, American Institute of Mathematics, Palo Alto, California

    2006

  • Dec 1, Kac's conjectures on quiver representations via arithmetic harmonic analysis, Algebraic Geometry seminar, Columbia University
  • Oct 9, Arithmetic of the Riemann-Hilbert monodromy map, Geometry seminar, University of Oxford
  • Oct 3, Kac's conjectures on quiver representations via arithmetic harmonic analysis, Algebraic Geometry seminar, University of Oxford
  • Sep 14, Mixed Hodge polynomials of character varieties, Trinity College, Dublin
  • Sep 4-8, "S-duality in hyperkähler Hodge theory" Madrid, Geometry Conference in honour of Nigel Hitchin poster
  • Aug, "Kac's conjectures on quiver representations via arithmetic harmonic analysis" (in Hungarian), Algebraic Geometry seminar, Rényi Institute , Budapest
  • Jan, "Kac's conjectures on quiver representations via arithmetic harmonic analysis", GADGET seminar UT Austin

    2005

  • December 6, Nagoya University
  • November 28 -December 10, Department of Mathematics, Kyoto University, visiting Hiraku Nakajima
  • November 24, Geometry seminar, University of Edinburgh
  • November 23, Joint Algebra and Geometry and Topology seminar University of Glasgow
  • November 21, Algebra seminar, University of Leeds
  • November 17, Representation theory seminar, University of Oxford
  • November 11," Cohomology of hyperkahler manifolds via arithmetic harmonic analysis" Topology and Geometry seminar, Imperial College, London
  • November 9, Geometry seminar, University of Cambridge
  • November 3-6, Workshop on the Topology of hyperkähler manifolds, Rényi Institute, Budapest
  • October 28, "Hyperkähler geometry and moduli spaces" (in Hungarian), Algebraic Geometry and Differential Topology Seminar, Renyi Institute, Budapest
  • October 24, Geometry and analysis seminar, University of Oxford
  • October 20, Algébre Géométrie Algébrique Topologie Algébraique séminaire, University of Montpellier
  • October 17, l'Institut Fourier, Grenoble
  • October 13, " Arithmetic harmonic analysis, Macdonald polynomials and the topology of the Riemann-Hilbert monodromy map" Seminaire Chevalley, Paris
  • Sep 14, "The Hitchin map (T and Langlands duality)" Geometry and string theory seminar, UT Austin
  • Sep 7, "The Hitchin space (non-abelian Hodge theory)" Geometry and string theory seminar, UT Austin
  • July 25-29, Moduli of Sheaves and cohomological methods, Summer Institute in Algebraic Geometry, University of Washington at Seattle
  • June 10, "Aritmetikus harmonikus analizis es hyperkahler sokasagok kohomologiaja" (Arithmetic harmonic analysis and the cohomology of hyperkahler manifolds) Algebraic Geometry seminar, Renyi Institute, Budapest
  • May 21-25 Moment maps in various geometries, Banff International Research Station
  • May 15-19, Densest Packing of Spheres, Banff International Research Station
  • May 13-14, "Quaternionic geometry of matroids", Calgary workshop in Discrete geometry
  • May 10-11, Symplectic Geometry Seminar, University of Toronto
  • April 21, "Topology of the Riemann-Hilbert monodromy map via arithmetic haRmonic analysis ", Differential Geometry seminar; University of Illinois, Urbana-Champaign
  • April 17, "Mirror symmetry and Langlands duality in the mixed Hodge structure of charaCter varieties of Riemann surfaces", Special Session on Geometry and Physics, AMS sectional meeting, Santa Barbara
  • February 22, "Topology of the Riemann-Hilbert monodromy map via arithematic harmonic analysis" , GADGET seminar, UT Austin

    2004

  • August 9-13, "Cohomology of hyperkahler quotients", Moment Maps and Surjectivity in Various Geometries, American Institute of Mathematics, Palo Alto
  • April 15, Geometry seminar, UT Austin: "On a conjecture on the mixed Hodge polynomial of the GL(n,C)-character variety of a Riemann surface "
  • April 8, Colloquium at Rice University, Houston: "Quaternionic geometry of everything".
  • March 17-21,L^2 harmonic forms in geometry and string theory , American Institute of Mathematics, Palo Alto

    2003

  • December 19, Geometric Methods in Algebra and Number Theory, University of Miami: "Mirror symmetry, Langlands duality and representations of finite groups of Lie type"
  • September 18, 2003 Geometry Seminar, UT Austin: Integrals on the moduli of Higgs bundles
  • Feb. 21-23, Houston, Texas Geometry and Topology Conference, Mirror symmetry, Langlands duality and representations of finite groups of Lie type
  • Feb 11, Number theory seminar, UT Austin: Mirror symmetry, Langlands duality and representations of finite groups of Lie type

    2002

  • Oct 8, 12 30 GADGET Seminar, UT Austin: Introduction to problems in quaternionic geometry III. Problems in quaternionic geometry
  • Oct 1, 12 30 GADGET Seminar, UT Austin: Introduction to problems in quaternionic geometry II. Introduction to hyperkähler (quaternionic, N=4 supersymmetric) geometry
  • Sep 24, 12 30 GADGET Seminar, UT Austin: Introduction to problems in quaternionic geometry I. The Kähler package
  • April 9, Miller Institute for Basic Reaserch in Science: Problem solving by geometrization and algebraization: Present day implementation of Descartes's program
  • Mar 29, MSRI, Berkeley, Non-Abelian Hodge Theory, Part I: Higgs bundles and applications workshop: Intersection theory on the moduli space of Higgs bundles
  • Mar 13, 2-3pm, MSRI, Berkeley, Intersection Theory on Stacks workshop: Intersection theory on toric hyperkahler varieties
  • Feb 8, Berkeley Compactifications seminar: Why compactify?

    2001

  • Dec 17, 16.00 Budapesti Mûszaki Egyetem (Technical University of Budapest), H. 306: Matroidok Kvaternió Geometriája (Quaternionic Geometry of Matroids)
  • Dec 14, 10.15 Rényi Institute, Budapest: Tükör szimmetria, Langlands dualitás és Hitchin rendszerek, (Mirror symmetry, Langlands duality and Hitchin systems)
  • Nov 27, Upenn Math-Physics joint seminar: Mirror symmetry, Langlands duality and Hitchin systems
  • Nov 19, Stanford Algebraic methods seminar: Quaternionic geometry of matroids
  • Nov 10-11, 2001 Fall Western Section Meeting Irvine, CA , Extremal Metrics and Moduli Spaces: Mirror symmetry, Langlands duality and Hitchin systems
  • Oct 15, Berkeley Combinatorics seminar titled: Quaternionic geometry of matroids
  • Oct 4, Austin Geometry seminar titled: Quaternionic geometry and dualities in mathematics and physics
  • Sep 11, Seminars on hyperKähler manifolds , Kyoto University: Yang-Mills instantons on Taub-NUT space
  • Sep 10, Seminars on hyperKähler manifolds, Kyoto University: Cohomology rings of quiver varieties
  • Sep 6, ``Geometry of Moduli spaces and Integrable Systems'', Workshop in RIMS, Kyoto University, Japan : Mirror symmetry, Langlands duality and Hitchin systems
  • June 1, Workshop on New Interfaces between Geometry and Physics, Miraflores de la Sierra, Madrid (Spain): Cohomology ring of Nakajima's quiver varieties;
  • April 20, joint Berkeley Differential Geometry and String Theory seminar: L^2 cohomology and Schwarzschild instantons;
  • April 10, Stanford Topology seminar titled Mirror symmetry, Langlands duality and Hitchin systems ;
  • April 2, Northern California Symplectic Geometry seminar: Cohomology ring of hyperkaehler quotients ;
  • March 21, Berkeley Infinite dimensional algebras seminar: Mirror symmetry, Langlands duality and Hitchin systems ;
  • March 19, Berkeley Combinatorics seminar : Combinatorics via topology of moduli spaces .