Title:
The Witten genus and equivariant elliptic cohomology
Authors:
Matthew Ando
mando@math.uiuc.edu
Maria Basterra
basterra@math.uiuc.edu
Department of Mathematics,
The University of Illinois at Urbana-Champaign
Abstract:
We construct a Thom class in complex equivariant elliptic cohomology
extending the equivariant Witten genus. This gives a new proof of the
rigidity of the Witten genus, which exhibits a close relationship to
recent work on non-equivariant orientations of
elliptic spectra.