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arXiv · 1201.5341

Kumar's criterion modulo p

Daniel Juteau·Geordie Williamson
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Abstract

We prove that equivariant multiplicities may be used to determine whether attractive fixed points on T-varieties are p-smooth. This gives a combinatorial criterion for the determination of the p-smooth locus of Schubert varieties for all primes p.

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Daniel Juteau, Geordie Williamson. 2012-01-25. Kumar's criterion modulo p. https://doi.org/10.1215/00127094-2819627

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