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arXiv · 2601.09798

Witt affine Springer theory

Noam Nissan·Yakov Varshavsky
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Abstract

This paper extends the affine Springer theory developed by Bouthier, Kazhdan, and the second author (see [BKV]) to the mixed characteristic case. In particular, we introduce a theory of perfectly placid perfect infinity stacks and establish their dimension theory. Furthermore, we prove that, in the Witt vector setting, the Chevalley morphism between arc spaces is flat.

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BibTeXRIS

Noam Nissan, Yakov Varshavsky. 2026-01-14. Witt affine Springer theory. https://arxiv.org/abs/2601.09798

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