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arXiv · 2306.06838

Hodge cohomology with a ramification filtration, I

Shane Kelly·Hiroyasu Miyazaki
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Abstract

We consider a filtration on the cohomology of the structure sheaf indexed by (not necessarily reduced) divisors ``at infinity''. We show that the filtered pieces have transfers morphisms, fpqc descent, and are so called cube invariant. In the presence of resolution of singularities and weak factorisation they are invariant under blowup ``at infinity''. As such, they lead to a realisation functor from Kahn, Miyazaki, Saito and Yamazaki's category of motives with modulus over a characteristic zero base field.

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Shane Kelly, Hiroyasu Miyazaki. 2023-06-12. Hodge cohomology with a ramification filtration, I. https://arxiv.org/abs/2306.06838

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