Sheared Witt Vectors

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Mathematics > Algebraic Geometry

arXiv:2607.01178 (math)

[Submitted on 1 Jul 2026]

Title:Sheared Witt Vectors

Authors:Bhargav Bhatt, Akhil Mathew, Vadim Vologodsky

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Abstract:V. Drinfeld and E. Lau introduced a ``decompletion'' of the ring of p-typical Witt vectors, following earlier work of T. Zink. The goal of this paper is to offer an exposition of this construction, which we call the sheared Witt vectors, on the category of rings Rwhose reduction is a perfect F p-algebra.

Comments:75 pages Subjects:Algebraic Geometry (math.AG); K-Theory and Homology (math.KT); Number Theory (math.NT) MSC classes:14F30 Cite as:arXiv:2607.01178 [math.AG] (or arXiv:2607.01178v1 [math.AG] for this version) https://doi.org/10.48550/arXiv.2607.01178

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From: Vadim Vologodsky [view email]

[v1] Wed, 1 Jul 2026 17:09:33 UTC (84 KB)

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