Principal Speakers at the Lehigh Geometry/Topology Conference

1986
• Ralph Cohen (Stanford) Diffeomorphisms, algebraic K-theory, and homotopy theory
• Eugenio Calabi (Penn) Some problems in affine differential geometry
• Ron Fintushel (Tulane) Positive-definite 4-manifolds
• Jeff Cheeger (SUNYSB) Eta-invariants, conical singularities, and the adiabiatic approximation
• Allen Hatcher (Cornell) Laminations and 3-manifolds

1987
• Frank Quinn (VPI&SU) Recent advances in the topology of 4-manifolds
• Mike Hopkins (Princeton) Some global aspects of homotopy theory
• Blaine Lawson (SUNYSB) Algebraic cycles and homotopy theory
• William Thurston (Princeton) 3-dimensional hyperbolic geometry
• Spencer Bloch (Chicago) The geometry of motives
• Richard Schoen (UCSD) Variational principles for Riemannian metrics

1988
• William Meeks (UMass) Geometry of surfaces
• Rob Kirby (Berkeley) 4-manifolds
• Cliff Taubes (Harvard) Circle-actions and characteristic classes
• Haynes Miller (MIT) New spaces from old
• S.-T. Yau (Harvard) Uniformization

1989
• Robert Bryant (Duke) Double fibrations and holonomy
• Schmuel Weinberger (Chicago) Topological rigidity phenomena
• Peter Landweber (Rutgers) Some problems about elliptic cohomology
• Richard Hamilton (UCSD) The evolution of a metric by Ricci curvature
• Fred Almgren (Princeton) What is a minimal surface?

1990
• Conference was held at Harvard

1991
• Julius Shaneson (Penn) Topological invariants of stratified spaces and algebraic varieties
• Dusa McDuff (SUNYSB) Blowing-up and symplectic 4-manifolds
• Doug Ravenel (Rochester) A Whitehead theorem for Morava K-theory
• Karsten Grove (Maryland) The recognition problem in Riemannian geometry
• David Gabai (CalTech) Convergence groups are Fuchsian groups

1992
• Conference was replaced by an AMS Regional Conference at Lehigh

1993
• Conference was held at Harvard

1994
• Sylvain Cappell (Courant) Todd classes in an infinite-dimensional Chow ring, and Euler-MacLaurin expansions
• Frank Morgan (Williams) Minimal surfaces and isoperimetric problems
• Clarence Wilkerson (Purdue) Torsion in the cohomology of classifying spaces
• Mark Stern (Duke) Hodge theory for lcoally symmetric varieties
• Joan Birman (Columbia) Finding essential tori in link complements
• Dennis DeTurck (Penn) Prescribing curvature tensors

1995
• John Morgan (Columbia) Seiberg-Witten invariants of 4-manifolds
• Jean Taylor (Rutgers) Crystalline surface diffusion
• Lou Kauffman (Illinois, Chicago) Invariants of links and 3-manifolds with and without quantum groups
• Bill Dwyer (Notre Dame) The Euler characteristic of a smooth manifold
• Dan Burns (Michigan) Birational transformations of symplectic varieties

1996
• Conference was held at Harvard

1997
• Peter Gilkey (Oregon) Riemannian manifolds whose skew-symmetric curvature operator has constant eigenvalues
• Robert Gompf (Texas) On the topology of Stein surfaces
• Steve Ferry (Binghamton) Geometry, controlled topology, and strange spaces
• Jon Wolfson (Michigan State) On a variational problem in symplectic geometry
• Mark Mahowald (Northwestern) Curves of higher genus and homotopy theory

1998
• Kent Orr (Indiana) Knot concordance and iterated Whitney towers
• Frank Quinn (VPI&SU) Some numerical quantum group theory
• Mark Goresky (IAS) Chern classes of modular varieties
• Peter Peterson (UCLA) Pinching in positive Ricci curvature
• Peter May (Chicago) Stable algebraic topology and stable topological algebra

1999
• Conference was held at Harvard

2000
• Bill Goldman (Maryland) Topology and dynamics of moduli spaces
• Martin Bridson (Oxford) Manifestations of non-positive curvature in group theory
• Dror Bar-Natan (Hebrew) From Stonehenge to Drinfel'd, skipping all the details
• Tom Goodwillie (Brown) 'Calculus' in homotopy theory
• Blaine Lawson (SUNYSB) Singularities and Chern-Weil theory

2001
• Michael Anderson (SUNY Stony Brook) Einstein metrics with prescribed conformal infinity on 4-manifolds.
• Carolyn S. Gordon (Dartmouth College) Isospectral manifolds with different local geometry.
• Jack Morava (Johns Hopkins Univ.) Topological field theories with values in spectra.
• Abby Thompson (Univ. California, Davis) Algorithms for Knots and 3-manifolds.
• Jeff Weeks (Canton, NY) Measuring the Universe.

2002
• Conference was held at Harvard.

2003
• Huai-Dong Cao (Texas A&M and Lehigh) Perelman's monotonicity formula and the Kaehler-Ricci flow
• Jeff Cheeger (Courant Institute, NYU) Degeneration of metrics with special holonomy
• Ruth Lawrence (Hebrew Univ) Quantum topology of the Poincare homology sphere
• Doug Ravenel (Univ of Rochester) Higher chromatic analogues of elliptic cohomology
• Vladimir Voevodsky (Institute for Advanced Study) On a conjectural model for loop-infinity suspension-infinity in the motivic homotopy theory

2004
• Colin Adams (Williams College) A pictorial survey of hyperbolic knots
• Jesper Grodal (Univ of Chicago) Lie groups from a homotopy viewpoint
• Peter Li (Univ of California, Irvine) Rigidity and structure of manifolds with positive spectrum
• Yair Minsky (Yale Univ) Surfaces in hyperbolic 3-manifolds
• Shing-Tung Yau (Harvard Univ) Positivity of local mass
• Wolfgang Ziller (Univ of Pennsylvania) Manifolds with positive sectional curvature

2005
• Conference was held at Harvard.

2006
• Fedor Bogomolov, Courant Institute Symmetric Tensors and Algebraic Hyperbolicity
• Ralph Cohen, Stanford University The space of smooth surfaces in a manifold
• Jun Li, Stanford UniversityGeometric approach to Gromov-Witten invariants
• Frank Morgan,Williams CollegeIsoperimetric Problems
• Dennis Sullivan,SUNY Stony BrookTBA