Formality of cochains on BG$BG$

Formality of cochains on BG$BG$
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DOI:
10.1112/blms.12777
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发表时间:
2022-12
影响因子:
0.9
通讯作者:
D. Benson;J. Greenlees
D. Benson;J. Greenlees
中科院分区:
数学3区
文献类型:
--
作者:
D. Benson;J. Greenlees

文献摘要

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设G$G$是具有极大环面T$T$的紧李群。如果|NG(T)/T|$|N_G(T)/T|$在域k$\mathsf{k}$中可逆,则余链代数C∗(bg;k)$C^*(bg;\mathsf{k})$形式化为A∞$A_\inty$代数,或等价于微分分次代数.
Let G$G$ be a compact Lie group with maximal torus T$T$ . If |NG(T)/T|$|N_G(T)/T|$ is invertible in the field k$\mathsf {k}$ , then the algebra of cochains C∗(BG;k)$C^*(BG;\mathsf {k})$ is formal as an A∞$A_\infty$ algebra, or equivalently as a differential graded algebra.