Calvin College, Grand Rapids, Michigan

February 26 and 27, 2005

Speaker: Stephan Stolz

Title: Elliptic cohomology via conformal field theories?

Time: Saturday, 4:30 - 5:30 p.m.

Abstract: I will report on joint work with Peter Teichner the eventual goal of which it is to give a geometric construction of elliptic cohomology. After motivating elliptic cohomology as the 'home' of the family Witten genus, I will explain our conjecture that the spectrum representing elliptic cohomology can be build from spaces of conformal field theories.

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