MIT Lie Groups Seminar 2001-02

##
MIT Lie Groups Seminar

2001-2002

Return
to current year.

September 12: ** Bertram Kostant (MIT), **
"The generalized Cayley map and a separation of variables theorem for
reductive Lie groups I" (joint with Peter Michor). CANCELLED.

September 19: ** Bertram Kostant (MIT), **
"The generalized Cayley map and a separation of variables theorem for
reductive Lie groups II" (joint with Peter Michor).

September 26: ** No Meeting.**

October 3*: ** Andrei Alexeevski (Moscow State University), **"Classification of maximal commutative subgroups of compact Lie groups."

October 10*: ** Alexi Sevostyanov (ETH), **
"Quantum reduction, semi-infinite cohomology and Hecke algebras."
CANCELLED.

Instead, we have our intrepid leader leaping into the breach to speak on
"Admissible nilpotent orbits of real and p-adic split exceptional groups"- after work of
Monica Nevins.

October 17*: ** Steve DeBacker (Harvard), **
"Homogeneity results for reductive p-adic groups."

October 24: ** Vadim Kaloshin (MIT), **
"Diophantine properties of elements of SO(3)."

October 31*: ** Hans Wenzl(UCSD/Harvard), **
"On centralizer algebras of Lie algebras of type E_N."

November 7*: ** Ian Grojnowski (Cambridge/Harvard), **
"The Hodge Theorem and Ramanujan sums."

November 14*: ** Jeff Adams (U.Maryland), **
"Character theory for nonlinear Lie groups."

November 21*: ** Alexandre Kirillov (SUNY Stony Brook), **
Topic to be announced.

November 28: ** Alex Postnikov (MIT), **
``Grassmann Cells and Planar Networks.'' This meeting is joint with the Combinatorics Seminar, and will take place at 4:15 in 2-338.

December 12*: ** Dmitri Pavouchine(visiting BU), **
"Invariants and orbits of the standard SL(4)xSL(4)xSL(2)-module".

February 6*,

Eric Sommers (U.Mass. Amherst)

*
Local systems on nilpotent orbits and weighted Dynkin diagrams.
*

February 13*,

Jasper Stokman (University of Amsterdam)

*
The Fourier transform associated to the quantum SU(1,1) group.
*

February 20*,

Giovanni Felder (ETH Zurich)

*
Semiclassical deformation quantization and Lie's third theorem for Lie
algebroids.
*

February 27,

George Lusztig, (M.I.T.)

*
Homomorphisms of A_5 into reductive groups.
*

March 6*,

Michael Finkelberg, (U.Mass. Amherst)

*
Calogero-Moser space and Kostka polynomials.
*

March 13,

Victor Ostrik, (M.I.T.)

*
Tensor categories (after Deligne).
*

March 20,

Steve Devlin, (M.I.T.)

*
Whittaker models for supercuspidal representations of metaplectic groups.
*

March 27,

No Seminar.

April 3,

David Vogan, (M.I.T.)

*
Intertwining operators and Weyl group representations.
*

April 10,

Bertram Kostant, (M.I.T.)

*
Convexity theorems and partial order on nilpotent elements (based on orbit closures).
*

April 17,

Joshua Scott, (M.I.T./Northeastern)

*
``Cluster algebras and Grassmannians.''
*

April 24,

Adriano Adrega de Moura, (M.I.T.)

*
``Blocks of finite dimensional representations of quantum affine algebras.''
*

May 1,

Sergei Loktev*, (M.S.R.I.)

*
``Coinvariants and level restricted Kostka polynomials.''
*

May 8,

No seminar -- do the decent thing and go and hear MacPherson.

May 15,

Norman Wilberger*, (U.N.S.W.)

*
``Quarks, diamonds, and unexpected symmetries.''
*

Joint with the combinatorics seminar.