Weibel vanishing and the projective bundle formula for mixed characteristic motivic cohomology

Fuente: arXiv
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Autore principale: Bouis, Tess
Natura: Preprint
Pubblicazione: 2025
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author Bouis, Tess
author_facet Bouis, Tess
contents We prove that the motivic cohomology of mixed characteristic schemes, introduced in our previous work, satisfies various expected properties of motivic cohomology, including a motivic refinement of Weibel's vanishing in algebraic $K$-theory, the projective bundle formula, a comparison to Milnor $K$-theory, and a universal characterisation in terms of pro cdh descent. These results extend those of Elmanto--Morrow to schemes which are not necessarily defined over a field.
format Preprint
id arxiv_https___arxiv_org_abs_2507_16501
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Weibel vanishing and the projective bundle formula for mixed characteristic motivic cohomology
Bouis, Tess
Algebraic Geometry
K-Theory and Homology
Number Theory
We prove that the motivic cohomology of mixed characteristic schemes, introduced in our previous work, satisfies various expected properties of motivic cohomology, including a motivic refinement of Weibel's vanishing in algebraic $K$-theory, the projective bundle formula, a comparison to Milnor $K$-theory, and a universal characterisation in terms of pro cdh descent. These results extend those of Elmanto--Morrow to schemes which are not necessarily defined over a field.
title Weibel vanishing and the projective bundle formula for mixed characteristic motivic cohomology
topic Algebraic Geometry
K-Theory and Homology
Number Theory
url https://arxiv.org/abs/2507.16501