Hodge cohomology with a ramification filtration, I (2306.06838v1)

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 blowupat 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.