2 papers
math.AG2025
Galois descent for motivic theories
Bruno Kahn
We give necessary conditions for a category fibred in pseudo-abelian additive categories over the classifying topos of a profinite group to be a stack; these conditions are suffici…
math.AG2025
Universal Weil cohomology
L. Barbieri-Viale, B. Kahn
We construct a new Weil cohomology for smooth projective varieties over a field, universal among Weil cohomologies with values in rigid additive tensor categories. A similar univer…