Complex Algebraic Geometry: A workshop on the occasion of Herbert Kurke's 70th birthday: "The Laplace transform of Hurwitz numbers." Humboldt University of Berlin, Germany. October 2009.
AIM Workshop on Recursion structures in topological string theory and enumerative geometry: "Laplace Transform, Cut-And-Join Equation, and the Bouchard-Marino Conjecture." AIM, Palo Alto. June 2009.
The 16th Osaka City University International Academic Symposium, Riemann Surfaces, Harmonic Maps and Visualization: "An integrable system approach to the newly discovered topological recursion." Osaka, Japan, December 2008.
IPMU Mini Workshop, A New Recursion from Random Matrices and Topological String Theory: "Deformation of tau functions and the Eynard-Orantin topological recursion." IPMU, Japan, December 2008.
KIAS Workshop on Gromov-Witten Theory and Related Topics: "Where do the Virasoro constraints and the KdV/KP equations come from?" KIAS, Korea. June 2008.
Moduli 2008--Bundles, Gerbes, and Derived Categories in String Theory: "New developments in topological string theory and intersection theory on the moduli spaces of Riemann surfaces." Salamanca, Spain. May 2008.
RIMS International Project Research Conference, Moduli Space and Enumerative Geometry: Lecture Series "Intersection theory of the moduli space of Riemann surface and integrable system. I. Mumford class and Weil-Petersson volume; II. Hodge class and Hurwitz number; III. New point of view to Witten-Kontsevitch theory." Kyoto University. April 2008.
RIMS International Project Research Conference, New developments in Algebraic Geometry, Integrable Systems and Mirror symmetry: "Hitchin integrable systems and KP-type equations." RIMS, Kyoto. January 2008.
RIMS International Conference on Geometry Related to Integrable Systems: "Integrable systems associated with character varieties." RIMS, Kyoto. September 2007.
London Mathematical Society Durham Symposium, Methods of Integrable Systems in Geometry: "Integrable Systems in Gromov-Witten Theory." Durham, England. August 2006.
2005 AMS Summer Institute on Algebraic Geometry. "Witten-Kontsevich theory revisited." AMS Summer Research Institute at University of Washington. July 2005.
The 34th ENCOUNTER with MATHEMATICS-- Theory of Nonlinear Special Functions and Applications of Painleve Equations: Lecture Series "1. From Gauss to Painleve: A story of new probability distributions; 2. Generating functions as special functions: Adding geometries." Chuo University, Tokyo. July 2005.
International Research Group Intensive Course--Local fields, algebraic geometry, generalized KP-hierarchy: Lecture Series "Symplectic geometry of the moduli spaces of pointed Riemann surfaces and the Virasoro constraints, I, II, III, IV." Humboldt University, Berlin. June 2005.
Winter School, Miami 2004: "Symplectic volume of the moduli of bordered Riemann surfaces and Witten-Kontsevich theory---a survey." University of Miami. December 2004.
2004 Workshop on Algebraic Geometry and Physics--Matrix Models and Algebraic Geometry: "Symplectic geometry of the moduli space of pointed algebraic curves." IST, Lisbon, Portugal. September 2004.
International Conference in Honor of Pierre van Moerbeke on the Occasion of his 60th Anniversary, Integrable Systems: "Matrix-type integrals over non-commutative algebras and volume of representation spaces." Poitiers, France. June 2004.
2003 Mathematical Society of Japan Fall General Meeting Invited Address, Infinite Analysis Session: "Geometry of Matrix Integrals." Mathematical Society of Japan Fall General Meeting, Chiba University, Japan. September 2003.
Probabilistic Operator Algebra Workshop and Seminar: "Geometry of Matrix Integrals Over Operator Algebras." UC Berkeley. August 2003.
YITP International Conference on Random Matrix Theory and Related Topics: "Duality of Orthogonal and Symplectic Matrix Integrals and Quaternionic Feynman Graphs." Yukawa Institute of Theoretical Physics, Kyoto. December 2002.
CIMAT International Workshop on Integrable Systems, Algebraic, Analytic and Geometric Aspects: "Duality in matrix integrals." CIMAT, Mexico. September 2002.
MSRI Workshop on Recent Progress in Random Matrix Theory and Its Applications: "Graphical Expansion of Non-Commutative Matrix Integrals." MSRI, Berkeley. September 2002.
The 38th Mathematical Society of Japan Summer Research Seminars on Several Complex Variables: Lecture Series "Grothendieck's Dessins d'Enfants and Moduli Theory of Riemann Surfaces, From a function theoretic point of view." Toyama, Japan. July 1999.
Mathematical Association of America Invited Address: "Collision of Infinitely Many Solitons and Tiling of a Surface." MAA Meeting at Stanford University. February 1998.
Workshop on Supersymmetry and Integrable Models: "Asymptotic Expansion of a Hermitian Matrix Integral." Chicago, Illinois. June 1997.
Special Session, The 921st AMS Western Section Meeting at Corvallis: "Continuum Solitons and Matrix Integrals." Oregon State University, Corvallis. April 1997.
Special Session, The 920th AMS Eastern Section Meeting at College Park: "Geometry of Commuting Differential Operators." University of Maryland, College Park. April 1997.
Annual Autumn School Lecture Series, Graduate College of Nonlinear Analysis and Geometry: "Topology of the moduli space of Riemann surfaces." Humboldt University of Berlin, Germany. September 1996.
Mathematisches Forschungsinstitut Oberwolfach Workshop, Complex Varieties and Vector Bundles: "Coverings of Riemann surfaces, vector bundles on them, and integrable systems." Oberwolfach, Germany. August 1995.
Mathematical Society of Japan Summer Institute for Youth: Lecture Series "Topology of moduli spaces and integrable systems." Mathematical Society of Japan. July 1995.
ICTP International Conference on Topological and Geometrical Problems Related to Quantum Field Theory: "Moduli of vector bundles on curves and integrable systems." ICTP, Trieste. March 1995.
Mathematisches Forschungsinstitut Oberwolfach Workshop, Integrable Systems from a Quantum Point of View: Invited Address. Oberwolfach, Germany. June 1994.
The Second Mathematical Society of Japan International Research Institute, Topology of Moduli Space of Curves: "The Kontsevich conjectures on matrix tau-functions." Kyoto, Japan. September 1993.
The 31st Taniguchi International Symposium, Field theory and low-dimensional topology: "Matrix Integrals and Integrable Systems." Kansei Gakuin Sengari Seminar House, Sanda, Japan. January 1993.
RIMS International Conference, 3-4 dimensional topology and field theory: Invited Address. RIMS, Kyoto. January 1993.
Special Session, The 877th AMS Western Section Meeting at Los Angeles: "Commuting ordinary versus partial differential operators." University of Southern California, Los Angeles. November 1992.
MPI-Bonn Workshop Complex Geometry: "A characterization of Prym varieties." Max-Planck-Institut fuer Mathematik, Bonn. April 1992.
MPI-Bonn Oberseminar: "Prym varieties and commuting flows on the infinite-dimensional Grassmannians." Max-Planck-Institut fuer Mathematik, Bonn. January 1992.
MPI-Bonn Workshop Complex Geometry: "Vector bundles on curves and commuting differential operators." Max-Planck-Institut fuer Mathematik, Bonn. October 1991.
The 27th Taniguchi International Symposium, Einstein metrics and Yang-Mills connections: "Vector bundles on curves and Grassmannians." Kansei Gakuin Sengari Seminar House, Sanda, Japan. December 1990.
Osaka International Conference on Complex Geometry and Related Topics held in commemoration of 50th anniversary of Osaka University: "Categorical equivalence between vector bundles on algebraic curves and points on Grassmannians." Osaka University, Japan. December 1990.
Special Session, The 862nd AMS Western Section Meeting at Irvine: "A new super KP system and a characterization of the Jacobians of arbitrary algebraic super curves." University of California, Irvine. November 1990.
ICM90 Satellite--International Conference on Algebraic Geometry and Analytic Geometry: "Super Grassmannians and Jacobians of super curves." Tokyo, Japan. August 1990.
1990 AMS Summer Research Institute on Dfferential Geometry: "Vector bundles on curves, Grassmannians, and the super-Schottky problem." AMS Summer Research Institute at UCLA. July 1990.
Joint AMS-IMS-SIAM Conference on the Schottky Problem: "A characterization of Jacobians of super curves." University of Massachusetts, Amherst. June 1990.
The 9th Annual Western States Mathematical Physics Meeting: "Super Grassmannians and algebraic super curves." California Institute of Technology, Pasadena. February 1990.
Berkeley-Santa Cruz-Stanford Geometry Conference: "Super Grassmannians and super Riemann surfaces." UC Berkeley. December 1989.
Mathematisches Forschungsinstitut Oberwolfach Workshop, Special Complex Varieties: "Infinite-dimensional Grassmannians, vector bundles on curves and commuting differential operators." Oberwolfach, Germany. August 1989.
The 18th International Conference on Dfferential Geometrical Methods in Theoretical Physics: "Infinite-dimensional orbits of the KP system and vector bundles on Riemann surfaces." Lake Tahoe, California. July 1989.
NATO Advanced Study Institute--Summer School on Physics and Geometry: Lecture Series "Riemann surfaces and the KP system." Lake Tahoe, California. June 1989.
Special Session, The 848th AMS Eastern Section Meeting at Worcester: "A correspondence between an infinite Grassmannian and vector bundles on algebraic curves." College of the Holy Cross, Worcester, Massachusetts. April 1989.
IAS Members Seminar: "Jacobi, Virasoro and Kac-Moody actions on an infinite Grassmannian." The Institute for Advanced Study, Princeton. November 1988.
1987 AMS Summer Research Institute on Theta Functions: "Super KP equation." AMS Summer Research Institute at Bowdoin College. July 1987.
MSRI Conference on Infinite Dimensional Lie Groups: "Schottky problem and infinite dimensional Lie groups." MSRI, Berkeley. May 1984.
MSRI Workshop on Vertex Operators: "Infinite-dimensional formal Lie group--a bridge connecting the linear world and the non-linear world." MSRI, Berkeley. November 1983.
1983 AMS Summer Research Institute on Partial Dfferential Equations: "Linear structure in soliton equations." AMS Summer Research Institute at UC Berkeley. July 1983.
MSRI Workshop on Dfferential Systems: "Linear structure in soliton equations." MSRI, Berkeley. May 1983.
M and Phi--International Conference on Mathematical Physics, Gauge Theory Session: "Instantons and line geometry." Lausanne, Switzerland. August 1979.
"Mirror Symmetry, Intersection Theory on Moduli Spaces, and Random Matrix Theory." University of Salamanca, Spain. May 2008.
"New Developments in Topological String Theory." Tohoku University, Japan. April 2008.
"A New Point of View in Witten-Kontsevich Theory." Nagoya University, Japan. July 2005.
"Geometry and Matrix Integrals." Nagoya University, Japan. September 2003.
"Algebraic Geometry, Topology, and Analysis of Matrix Integrals." Humboldt University of Berlin, Germany. April-May 2002.
"Algebraic Geometry of Integrable Systems." Humboldt University of Berlin, Germany. November 1995.
"Moduli of Vector Bundles and Hitchin's Hamiltonian Systems." Kyoto University, Japan. July 1995.
"Matrix Integrals, Topology of Moduli Spaces, and Integrable Systems." Kyoto University, Japan. November-December 1994.