MIT Lie Groups Seminar
2011-2012

Current year

Sep 7:

David Vogan (MIT)
Kazhdan-Lusztig polynomials for involutions

Sep 14:

Avraham Aizenbud (MIT)
Derivatives for representations of GL(n,R) and GL(n,C)

September 21:

David Kazhdan (Hebrew University)
Endoscopic decomposition and the Bernstein center
FOLLOWED BY DINNER at Rubin's, 500 Harvard St, Brookline.

September 28:

Eric Rains (Caltech and MIT)
Vanishing integrals for Macdonald polynomials

Oct 5:

Eric Marberg (MIT)
Character constructions for finite algebra groups

Oct 12:

Eric Marberg (MIT)
Character constructions for finite algebra groups II

Oct 19:

Michele Vergne (Jussieu)
Box splines and branching rules
Followed by dinner.

Oct 26:

David Vogan (MIT)
Left cells and Harish-Chandra cells of Weyl group representations

Nov 2:

Tsao-Hsien Chen (MIT)
Gamma-sheaves on reductive groups

Nov 9:

NO MEETING

Nov 16:

David Vogan (MIT)
Left cells and Harish-Chandra cells of Weyl group representations II

Nov 23:

Eric Rains (Caltech and MIT)
Coxeter group actions with Bruhat orders

Nov 30:

No meeting

Dec 7:

Dan Ciubotaru (University of Utah)
The Dirac operator and spin representations of Weyl groups
Followed by dinner

Dec 14:

George Lusztig (MIT)
A bar operator for involutions in a Coxeter group
End of seminar for the fall semester.

Feb 8:

Bertram Kostant (MIT)
Center of U(n), cascade of orthogonal roots, and a construction of Wolf-Lipsman.

Feb 15:

David Helm (UT Austin)
The Bernstein center of the category of smooth $W(k)[GL_n]$-modules.
Followed by dinner

Feb 22:

Eric Sommers (UMass Amherst)
On a duality for nilpotent orbits arising from two maps.
Followed by dinner

Feb 29:

Benjamin Enriquez (Strasbourg)
Drinfeld associators, braid groups, and the Kashiwara-Vergne conjecture
Joint work with Alekseev and Torossian
Followed by dinner

March 7:

Vinoth Nandakumar (MIT)
Equivariant coherent sheaves on the exotic nilpotent cone

March 14:

David Vogan (MIT)
What the local Langlands correspondence can do for you.

March 21:

March 28:

SPRING BREAK: NO MEETING

April 4:

Anthony Licata (Stanford/IAS/Australian National University)
Categorification of the basic representation.
FOLLOWED BY DINNER

April 11:

Simon Riche (Universite Blaise Pascal - Clermont-Ferrand II)
Geometric Satake, Springer correspondence, and small representations
FOLLOWED BY DINNER

April 18:

Roman Travkin (MIT)
Quantum geometric Langlands correspondence in positive characteristic: the GL(N) case.

April 25:

Alexander Braverman (Brown University)
Computing the Tamagawa number for affine Kac-Moody groups

May 2:

Alex Lubotzky gives Simons lecture: no meeting.

May 9:

Shamgar Gurevich (University of Wisconsin)
The Heisenberg–Weil representation and fast wireless communication
Followed by dinner

May 16:

George Lusztig (MIT)
A unipotent support for character sheaves
End of seminar for the fall semester.