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arXiv · 2010.15472

Witt ring localized

Vadim Schechtman
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Abstract

The rings of $p$-typical Witt vectors are interpreted as spaces of vanishing cycles for some perverse sheaves over a disc. This allows to "localize"\ an isomorphism emerging in Drinfeld's theory of prismatization [Dr], Prop. 3.5.1, namely to express it as "an integral"\ of a standard exact triangle on the disc.

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Vadim Schechtman. 2020-10-29. Witt ring localized. https://arxiv.org/abs/2010.15472

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