A-Genus and the Sigma Model
arXiv:hep-th/9406023
Abstract
This set of lecture notes presents a pedantic derivation of the connection between the -genus of spacetime's loop space and the genus one partition function of the sigma model. It concludes with some remarks on possible generalizations of the -genus which follow naturally from the `stringy' point-of-view but have yet to be explored mathematically. This set of lecture notes is geared towards a mathematical audience unfamiliar with the sigma model.
16 Pages