Tim Ryan : An Introduction to Deformation Theory: or how to formally wiggle

Posted by Tim Ryan , part of the Graduate Algebraic Geometry Seminar.

At

Feb. 11, 2015, 3 p.m.

In

SEO 712

Abstract

I will define deformations in increasingly general settings starting with deformations of closed subschemes following Hartshornes's book on deformation theory. In order to do so, I will define the $T^i$ functors. I will finish with a discussion of the infinitesimal lifting property and what the vanishing of the $T^i$ tells us.