An algorithm of computing cohomology intersection number of hypergeometric integrals
arXiv:1904.01253
Abstract
We show that the cohomology intersection number of a twisted Gauss-Manin connection with regularization condition is a rational function. As an application, we obtain a new quadratic relation associated to period integrals of a certain family of K3 surfaces.
16 pages, final version, to appear in Nagoya Mathematical Journal