Bonn Topology Group - Abstracts

General Information - Members - Activities - Topology Seminar

Talk

November 15, 2023
Jack Davies (Bonn University): Geometric norms on equivariant elliptic cohomology

Abstract

Inspired by the work of Lurie and others, Gepner and Meier define families of equivariant cohomology theories based on oriented elliptic curves. By construction, these equivariant elliptic cohomologies are multiplicative, but only in a sense naive -- there is no obvious construction of norm maps on these theories. In this talk, I will describe how to use a moduli interpretation of the geometric fixed points of these equivariant theories due Gepner-Meier, to construct what we call 'geometric norms'. Some applications of these geometric norms will also be discussed. This is joint work-in-progress with William Balderrama and Sil Linskens.

Back to seminar page