2 papers
math.AG2026
Kato's Ramification filtration via de Rham-Witt complex and applications
Amalendu Krishna, Subhadip Majumder
Given an -finite regular scheme of positive characteristic and a simple normal crossing divisor on , we introduce a filtration on the de Rham-Witt complex $W_mΩ^\bull…
math.AG2026
Brauer group of varieties over local fields of finite characteristic
Amalendu Krishna, Subhadip Majumder
We show that the nonlogarithmic version of Kato's ramification filtration on the Brauer group of a separated regular scheme of finite type over a henselian discrete valuation field…