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arXiv · 1908.03672

Higher signs for Coxeter groups

Zhiwei Yun
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Abstract

We define and study cocycles on a Coxeter group in each degree generalizing the sign function. When the Coxeter group is a Weyl group, we explain how the degree three cocycle arises naturally from geometry representation theory.

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Zhiwei Yun. 2019-08-10. Higher signs for Coxeter groups. https://arxiv.org/abs/1908.03672

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