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Elliptic genera and Thom classes

Friday 13th December 2002 - 09:00 to 10:00
INI Seminar Room 1
Session Title: 
Elliptic cohomology and chromatic phenomena
I will survey some features of elliptic genera from the mathematics and physics literature and explain how they look from the point of view of homotopy theory. In particular, I shall explain how features of the "sigma orientation" and its equivariant analogue relate to modularity, rigidity, the two-variable elliptic genus, orbifold elliptic genera, and discrete torsion.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons