Ext-groups in the Category of Strict Polynomial Functors

Published 21 Jun 2023 in math.AT | (2306.12004v1)

Abstract: The aim of this paper is to study, by using the mathematical tools developed by Chalupnik, Touze, and Van der Kallen, the effect of the Frobenius twist on Ext-group in the category of strict polynomial functors. As an application, we obtain explicit formulas of cohomology of the orthogonal groups and symplectic ones.

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Van Tuan Pham

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