2 papers
math.AG2026
Computing the cohomology of constructible étale sheaves on curves
Christophe Levrat
We present an explicit expression of the cohomology complex of a constructible sheaf of abelian groups on the small étale site of an irreducible curve over an algebraically closed…
math.NT2025
Effective Artin-Schreier-Witt theory for curves
Christophe Levrat, Rubén Muñoz--Bertrand
We present an algorithm which, given a connected smooth projective curve over an algebraically closed field of characteristic and its Hasse--Witt matrix, as well as a pos…