-Adic Weight Spectral Sequences of Strictly Semi-stable Schemes over Formal Power Series Rings via Arithmetic -modules
arXiv:2502.12136
Abstract
Let be a perfect field of characteristic . For a strictly semi-stable scheme over , we construct the weight spectral sequence in -adic cohomology using the theory of arithmetic -modules, whose terms are described by rigid cohomologies of irreducible components of the closed fiber and whose terms are conjecturally described by the (unipotent) nearby cycle of Lazda-Pál's rigid cohomology over the bounded Robba ring. We also show its functoriality by pushforward and state the conjecture of its functoriality by pullback and dual.