Smoothness of Schubert varieties indexed by involutions in finite simply laced types

Axel Hultman; Vincent Umutabazi

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arXiv · 1905.09573

Smoothness of Schubert varieties indexed by involutions in finite simply laced types

Axel Hultman·Vincent Umutabazi

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Abstract

We prove that in finite, simply laced types, every Schubert variety indexed by an involution which is not the longest element of some parabolic subgroup is singular.

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Axel Hultman, Vincent Umutabazi. 2019-05-23. Smoothness of Schubert varieties indexed by involutions in finite simply laced types. https://arxiv.org/abs/1905.09573

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