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Closures of Steinberg fibers in twisted wonderful compactifications

Xuhua He·Jesper Funch Thomsen
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Abstract

By a case-free approach we give a precise description of the closure of a Steinberg fiber within a twisted wonderful compactification of a simple linear algebraic group. In the non-twisted case this description was earlier obtained by the first author.

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Xuhua He, Jesper Funch Thomsen. 2006-02-01. Closures of Steinberg fibers in twisted wonderful compactifications. https://arxiv.org/abs/math/0506087

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