**Alexander Barvinok**, Professor of Mathematics, University of Michigan; August 31,2017.

**Imre Barany**, Professor of Mathematics, Hungarian Academy of Sciences & University College-London; August 29, 2017.

**Ronald Douglas**, Distinguished Professor of Mathematics, Texas A&M; February 4, 2016.

**Xiaojun Huang**, Distinguished Professor of Mathematics, Rutgers University at New Brunswick; April 2, 2015.

**Fraydoun Rezakhanlou, **Department of Mathematics at the University of California, Berkeley; Symplectic Capacity, Conformal Modulus and Fluid Mechanics; March 14, 2013.

**Tobias Colding** from the Massachusetts Institute of Technology; April 12, 2012.

**Yoshihiko Mitsumatsu** from Chuo University, Tokyo, Japan; A geometric introduction to incompressible fluid motions on manifolds; April 19, 2012.

**Leonid Polterovich** from the Department of Mathematics at the University of Chicago; Inside the Poisson bracket: some function-theoretic aspects of symplectic geometry; May 2, 2011.

**Nicolai Reshetikhin** from the Department of Mathematics at the University of California, Berkeley; Understanding random surfaces; December 2, 2010.

**Simon Brendle** from the Department of Mathematics at Stanford University; April 29-30, 2010.

**Robert Osserman** from the Mathematical Sciences Research Institute; An inverse problem in the calculus of variations, tube-like domains, and compressed catenaries; March 24-25, 2009.

**Yakov Eliashberg** from Stanford University; Symplectic geometry of affine complex manifolds; April 10-11, 2008.

**John Morgan** from Columbia University & Gang Tian from Princeton University; The Poincare Conjecture and the Geometrization Conjecture; October 19 - 20, 2007.

**Brian White** from Stanford University; April 20, 2006.

**Alan Weinstein** from University of California, Berkeley; Morita equivalence in algebra and geometry; February 24, 2005.

**Peter Ozsvath** from Columbia University & IAS; Holomorphic Disks and Low-dimensional Topology; March 29 - May 1, 2004.

**Misha Kapovich** from University of Utah; Symmetric spaces, buildings, and nonpositive curvature; March 19-21, 2003.

**Sun-Yung Alice Chang** from Princeton University; Conformal invariant operators and elliptic equations in conformal geometry; March 25, 2002.

**Grigorii Margulis** from Yale University; Quantitative Oppenheim conjecture; February 28, 2002.

**Raoul Bott** from Harvard University, **Alberto Candel** from California State University at Northridge, **John Cantwell** from Saint Louis University, **Thomas E. Cecil** from College of the Holy Cross, **James L. Heitsch** from University of Illinois Chicago, **Steven Hurder** from University of Illinois Chicago, and **Paul A. Schweitzer** from Pontificia Universidade Catolica do Rio de Janeiro, Brazil; April 7-8, 2001.

**Takashi Tsuboi** from University of Tokyo and Stanford University; Transverse intersection of foliations in 3-manifolds; October 21, 1999.

**Jeff Cheeger** from New York University, Courant Institute; Calculus on metric measure spaces; September 23, 1999.

**Ulrich Pinkall** from Technische Universitat, Berlin; Quaternionic algebraic geometry and differential geometry of surfaces; February 25, 1999.

**Raghavan Narasimhan** from University of Chicago; Bernstein-Markov type inequalities for families of analytic functions; February 4, 1999.

**Chuu-Lian Terng** from Institute for Advanced Study, Princeton; April 16, 1998.

**Michael Wolf** from Rice University; March 12, 1998.

**Christopher B. Croke** from University of Pennsylvania; November 14, 1996.

**Karsten Grove** from University of Maryland; April 4, 1996.

**Robert L. Bryant** from University of North Carolina; February 23, 1995.

**Raoul Bott** from Harvard University; March 21, 1994.

**Thomas E. Cecil** from College of the Holy Cross; April 1, 1993.

**Robert C. Hartshorne** from University of California, Berkeley; February 25, 1992.

**Patrick Eberlein** from University of North Carolina; March 11-15, 1991.

**William Fulton** from University of Chicago; June 5-10, 1989.

**John W. Morgan** from Columbia University; February 15-19, 1988.

**Nicolaas H. Kuiper** from Institut des Hautes Etudes Scientifiques, France; January 20-24, 1986.

**I. M. Singer** from Massachusetts Institute of Technology; January 14-18, 1985.

**Phillip A. Griffiths** from Harvard University; January 9-13, 1984.

**John Milnor** from Institute for Advanced Study, Princeton; January 10-14, 1983.