Exponential sums and rigid cohomology

Abstract

In this article, we prove a comparison theorem between the Dwork cohomology introduced by Adolphson and Sperber and the rigid cohomology. As a corollary, we can calculate the rigid cohomology of Dwork isocrystal on torus.

12 pages

Cited by in corpus (1)

• Exponentially twisted de Rham cohomology and rigid cohomology