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Modular Invariance and Characteristic Numbers

Kefeng Liu

hep-tharXiv:hep-th/9404053

Abstract

We show that a general miraculous cancellation formula, the divisibility of certain characteristic numbers and some other topologiclal results are con- sequences of the modular invariance of elliptic operators on loop spaces. Previously we have shown that modular invariance also implies the rigidity of many elliptic operators on loop spaces.

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