I am coorganizing the Brandeis-Harvard-MIT-Northeastern joint colloquium and the Geometry, Physics and Representation theory seminar .
I also had a habit of coorganizing graduate student topics seminars on various subjects related to Representation theory (joint with MIT, notes available!):
In the Spring 2016 I've coorganized MIT-NEU graduate student seminar on moduli spaces of sheaves on K3 surfaces. Here are the details.
In the Spring 2015, we were discussing various things related to quiver varities. This was accompanied by several invited lectures by Raphael Rouquier (UCLA), Andrei Okounkov (Columbia) and Dmitry Kaledin (Steklov Institute).
In the Fall 2014, we were focussing on Hecke algebras.
In the Spring 2014, we discussed various geometric and representation theoretic questions related to the Hilbert scheme of points on the plane.
In the Fall 2013 we did our best to study connections between quantum cohomology and representation theory in the setting of cotangent bundles to flag varieties.