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Lie Theory
Mar 10, 2008 to Mar 14, 2008

Organizer(s)

Alexander Kleshchev, Arun Ram, Richard Stanley (chair), Bhama Srinivasan
To apply for funding, you must register by Fri, Jan 18 2008.
The emphasis will be on the interplay of combinatorics, Lie theory and finite group theory. Connections between these areas go back at least to Schur and Weyl: representations of the symmetric group, polynomial representations of general linear group, Weyl’s character formula. In the last 20 years the field has seen great development as the combinatorics of Young tableaux has been generalized to any Lie type via the theory of crystals. Littlemann’s path model approach to crystals makes a strong connection between this theory and the geometry of the ?ag variety and recent activity is exploring the connection between representation theory, the geometry of the loop Grassmannian and affine Hecke algebras. In the modular representation theory of finite groups of Lie type, connections with complex geometry have arisen in the defining characteristic case and with affine Kac-Moody algebras in the non-defining characteristic case.

Topics covered by the workshop will include finite groups of Lie type, algebraic groups, quantum groups, affine Lie algebras, Hecke algebras, cluster algebras, W-algebras, and modular Lie algebras.


Accommodations:

A block of rooms has been reserved at the Rose Garden Inn. Reservations may be made by calling 1-800-992-9005 OR directly on their website. Click on "Groups" on the bottom of the page and enter the appropriate group code CGLIE (this code is not case sensitive) into box labeled: "I am an Attendee" - this will open up a window showing all of the group information. You will proceed from there.
The cut-off date for reservations is February 23, 2008.

Funding

To apply for funding, you must register by Fri, Jan 18 2008. Click to Register
Students, recent Ph.D.'s, women, and members of underrepresented minorities are particularly encouraged to apply. Funding awards are made typically 6 weeks before the workshop begins. Requests received after the funding deadline are considered only if additional funds become available.
Schedule
Monday, March 10, 2008
9:30AM - 10:30AM Georgia Benkart Bases, Lattices, Hyperbolic Kac-Moody Algebras [Video available]
11:00AM - 12:00PM Viktor Ginzburg Mirabolic affine Grassmannian and character sheaves [Video available]
2:00PM - 3:00PM Viktor Ostrik, Viktor Ostrik, Viktor Ostrik Tensor categories attached to cells in Weyl groups
4:10PM - 5:00PM Sergey Fomin Cluster algebras [Video available]
Tuesday, March 11, 2008
9:30AM - 10:30AM George Lusztig Canonical bases and construction of Chevalley groups over Z [Video available]
11:00AM - 12:00PM Peter Littelmann Superbosonization of invariant matrix ensembles [Video available]
2:00PM - 3:00PM Bernard Leclerc Monoidal categorifications of cluster algebras [Video available]
3:30PM - 4:30PM Peter Fiebig Sheaves on affine flag varieties, modular representations and Lusztig's conjecture [Video available]
Wednesday, March 12, 2008
9:30AM - 10:30AM Alexander Premet Small nonrestricted representations and completely prime primitive ideals. [Video available]
11:00AM - 12:00PM Cedric Bonnafe Semicontinuity properties of Kazhdan-Lusztig cells [Video available]
Thursday, March 13, 2008
9:30AM - 10:30AM Ivan Loseu Quantized symplectic actions and W-algebras [Video available]
11:00AM - 12:00PM Edward Frenkel Langlands correspondence for loop groups [Video available]
2:00PM - 3:00PM Vyjayanthi Chari Abelian Ideals, KR--modules and Koszul algebras [Video available]
4:00PM - 5:00PM Victor Kac Poisson vertex algebras and integrable systems [Video available]
Friday, March 14, 2008
9:30AM - 10:30AM Meinolf Geck James' conjecture for Hecke algebras of exceptional type [Video available]
11:00AM - 12:00PM Susumu Ariki Two applications of Littelmann's path model [Video available]
1:30PM - 2:30PM Gustav Lehrer Coxeter group actions on the cohomology of toric varieties [Video available]
3:00PM - 4:00PM Gunter Malle Counting Characters of p'-degree [Video available]
Parent Program(s):
Combinatorial Representation Theory
Representation Theory of Finite Groups and Related Topics


Questions about this workshop should be sent either by email to
or by regular mail to:
Lie Theory
Mathematical Sciences Research Institute
17 Gauss Way, Berkeley, CA
94720-5070.
USA

The Institute is committed to the principles of Equal Opportunity and Affirmative Action.



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