RTG Seminar

from Monday
January 01, 2018 to Thursday
May 31, 2018
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Instructions for subscribing to Stony Brook Math Department Calendars

Wednesday
January 31, 2018

11:30 AM
5-127
Marlon de Oliveira Gomes, Stony Brook University
Organizational Meeting

We will have a short organizational meeting to set the course for the seminar which will ultimately be aimed at studying stability conditions and wall-crossing phenomena.


Wednesday
February 07, 2018

11:30 AM
5-127
Frederik Benirschke, Stony Brook University
Introduction to GIT

In this talk, we will give some indication of where quotients arise and are important in geometry and then introduce Geometric Invariant Theory as an algebro-geometric approach to producing them, together with some examples.


Wednesday
February 14, 2018

11:30 AM
5-127
Marlon de Oliveira Gomes, Stony Brook University
Projective GIT quotients

In this talk, we will continue with our introduction to GIT by looking this time at projective quotients. We will try to give some indication of the relative delicacy of this case compared to the optimal situation we saw with affine quotients.


Wednesday
February 21, 2018

11:30 AM
5-127
Yoonjoo Kim, Stony Brook University
The Hilbert-Mumford Criterion for Stability

In this talk we will focus our attention on the notion of stability previously introduced for these actions by reductive groups. We will state a theorem, due in part to Hilbert and Mumford respectively, which detects the (semi)stable points of an action using an eigenanalysis of the 1-parameter subgroups, complete with examples.


Show events for:
Instructions for subscribing to Stony Brook Math Department Calendars