Signature quantization.

Guillemin, Victor; Sternberg, Shlomo; Weitsman, Jonathan · Proc Natl Acad Sci U S A · 2003

basic_science · Level V

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Abstract

We associate to the action of a compact Lie group G on a line bundle over a compact oriented even-dimensional manifold a virtual representation of G using a twisted version of the signature operator. We obtain analogues of various theorems in the more standard theory of geometric quantization.