# Algebra Seminar 2005

This seminar is held on Tuesdays at 4pm in 210 Deady.

### Fall Quarter, 2005

- September 27 –
**Arkady Berenstein**– University of Oregon.

**From crystal bases to geometric crystals** - October 4 –
**Sebastian Zwicknagl**– University of Oregon.

**Braided symmetric and exterior algebras II: Flat modules and Poisson structures** - November 1 –
**Jonathan Brundan**– University of Oregon.

**Good grading polytopes** - November 10, Thursday, 4pm, Deady 210 (note the unusual time!) –

**Pavel Etingof**– MIT.

**Central extensions of preprojective algebras of Dynkin quivers, quantum Heisenberg algebras, and Hecke algebras of 2-dimensional complex reflection groups** - November 29, –
**Dan Dugger**– University of Oregon.

**Introduction to Motivic Cohomology**

### Winter Quarter, 2006

- February 7, –
**Victor Ostrik**– University of Oregon.

**Simple modules over a semisimple Lie algebra in prime characteristic (after Bezrukavnikov, Mirkovic and Rumynin)** - February 28, –
**Dev Sinha**– University of Oregon.

**Duality between Lie and commutative algebras, revisited** - March 7, –
**Brad Shelton**– University of Oregon.

**PBW deformations of graded algebras** - March 14, –
**Greg Landweber**– University of Oregon.

**Off-shell supersymmetry and filtered Clifford supermodules**

### Spring Quarter, 2006

- April 11, –
**Sebastian Zwicknagl**– University of Oregon.

**Deformations of Symmetric Module-Algebras** - April 18, –
**Weiqiang Wang**– University of Virginia.

**A new class of double affine Hecke algebras associated to the spin symmetric groups** - April 25, –
**Jonathan Brundan**– University of Oregon.

**Schur-Weyl duality for higher levels (again)** - May 2, –
**William Kantor**– University of Oregon.

**Presentations of finite simple groups** - May 9, –
**John Collins**– University of Oregon.

**Introduction to Stability Conditions** - May 16, –
**Gary Seitz**– University of Oregon.

**Unipotent and nilpotent classes in algebraic groups, finite groups of Lie type, and associated Lie algebras** - May 23, –
**Charles Curtis**– University of Oregon.

**Exponential sums and representations of finite groups of Lie type** - May 30, –
**Victor Ostrik**– University of Oregon.

**Asymptotic Hecke ring of a Weyl group** - June 6, –
**Jonathan Brundan**– University of Oregon.

**Combinatorial representation theory of the general linear supergroup**