The Equations of Singular Loci of Ample Divisors on (Subvarieties of) Abelian Varieties

Abstract

In this paper we consider ideal sheaves associated to the singular loci of a divisor in a linear system $|L|$ of an ample line bundle on a complex abelian variety. We prove an effective result on their (continuous) global generation, after suitable twists by powers of $L$. Moreover we show that similar results hold for subvarieties of a complex abelian variety.Comment: 9 pages, no figure