Jay Kopper : Effective cycles on blow-ups of grassmannians

Posted by John Kopper , part of the Graduate Algebraic Geometry Seminar.

At

Aug. 31, 2016, 3 p.m.

In

SEO 712

Abstract

In this talk I will discuss some recent results on the positivity of cycles on blow-ups of Grassmannians. We will see some interesting pathologies, including an effective cone which is not finitely generated (assuming the SHGH conjecture).