A-hypergeometric series and the Hasse-Witt matrix of a hypersurface

Abstract

We give a short combinatorial proof of the generic invertibility of the Hasse-Witt matrix of a projective hypersurface. We also examine the relationship between the Hasse-Witt matrix and certain $A$-hypergeometric series, which is what motivated the proof.

7 pages

References in corpus (1)

• On logarithmic solutions of A-hypergeometric systems