外尔群不变量
Weyl group invariants
摘要：
对任意奇素数$p$，证明了从紧致单连通单连通李群的分类空间的模$p$上同调到其极大环面的分类空间的模$p$上同调的外尔群不变量的诱导同态是满同态，但$p=3$，$G=E_8$除外.
英文摘要：
For any odd prime $p$, we prove that the induced homomorphism from the mod $p$ cohomology of the classifying space of a compact simply-connected simple connected Lie group to the Weyl group invariants of the mod $p$ cohomology of the classifying space of its maximal torus is an epimorphism except for the case $p=3$, $G=E_8$.
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