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arXiv:1308.1724 [math.AT]AbstractReferencesReviewsResources

A generalization of Kostant theorem to integral cohomology

Qibing Zheng

Published 2013-08-08Version 1

In this paper, we find weight decomposition and rank of a weight in the integral (co)homology of the positive system of a semi-simple Lie algebra over $\Bbb C$ and prove that the (co)homology of the weight subcomplex over a field of characteristic p is 0 if the rank of the weight is not divisible by p. This generalizes Kostant theorem to the integral cohomology of the positive system.

Comments: 22 pages
Categories: math.AT, math.RT
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