Â-Genus and the Sigma Model
نویسنده
چکیده
This set of lecture notes presents a pedantic derivation of the connection between the Â-genus of spacetime’s loop space and the genus one partition function of the N = 1/2 sigma model. It concludes with some remarks on possible generalizations of the Âgenus 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 N = 1/2 sigma model.
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