Higher Signs for Coxeter Groups
Zhiwei Yun
Peking Mathematical Journal ›› 2021, Vol. 4 ›› Issue (2) : 285 -303.
Higher Signs for Coxeter Groups
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 geometric representation theory.
David and Lucile Packard Foundation
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