Kevin Tucker : A uniform description of test and multiplier ideals

Posted by , part of the Algebraic Geometry Seminar.

At

April 11, 2012, 4 p.m.

In

SEO 427

Abstract

Multiplier ideals are invariants measuring singularities on complex algebraic varieties with analytic origins. In contrast, test ideals are invariants in positive characteristic defined via Frobenius. We will discuss recent advances further linking these invariants to one another, and in particular a characteristic free description of these two invariants. This is joint work with Manuel Blickle and Karl Schwede.