Hodge ideals and minimal exponents of ideals

Abstract

We define and study Hodge ideals associated to a coherent ideal sheaf a on a smooth complex variety, via algebraic constructions based on the already existing concept of Hodge ideals associated to Q-divisors. We also define the generic minimal exponent of a, extending the standard invariant for hypersurfaces. We relate it to Hodge ideals, and show that it is a root of the Bernstein-Sato polynomial of a.