Ben Webster: Talks/Presentations

The photo: The Louvre and Pont des Arts in Paris.

Links:

Here are some slides and notes from talks I have given. For a more complete list, see my CV.

Categorification and topology

from the generalist Everytopic seminar at Brandeis (slides).

A strange duality and its implications for knot theory

most recent version, from ARTIN in Glasgow (slides)
given in a more algebraic mood in the representation theory seminar in Chicago (slides)
given in a very symplectic form at the MIT symplectic seminar (slides).
the kitchen sink version, from two talks in Toronto (slides)
with something of a topological/TQFT flavor from the colloquium at Oregon (slides)

A geometric description of colored HOMFLYPT homology

given at

MIT, April 2009 (slides).
Knots in Washington, Jan. 2009 (slides).

Be sure to check out the paper.

Knot homology and quiver varieties

given at the Joint Mathematics Meetings (slides).

2-block Springer fibers and convolution algebras

given at:

Georgia Topology Conference (slides).
Geometry seminar, UMass Amherst (04/08). (slides).
Topology seminar, Princeton (12/07).
RTCG seminar, Berkeley (10/07).
Algebra seminar, Oregon (10/07).

The Geometry of Soergel bimodules

given at:

An Oporto meeting on link homology (actually in Faro, Portugal, 07/07). here are slides for that.
A conference on TQFT and geometry in Aarhus, Denmark (06/07).
A representation theory workshop at Berkeley (05/07). Here are slides and a handout.

I gave a related, but quite different pair of talks on A sheaf theoretic approach to knot homology at a Maxwell Colloquium on knot homology in Edinburgh, Scotland (11/07).

The unramified Langlands correspondence and Satake isomorphisms

for the seminar on local geometric Langlands, given in Berkley (2/07): here are slides from that version: PDF

Computation in Khovanov-Rozansky homology

given in various forms at:

Applications of Quantum Algebra Seminar, UC Davis (5/07): here are beamer slides for that version: PDF
Symplectic Geometry Seminar, Stanford University (2/07): here are beamer slides from that version: PDF.
CTQM Retreat, the Sandbjerg Estate, Denmark (12/06): here are beamer slides from that version: PDF.
Topology Seminar, Aarhus University, Denmark (11/06)
Gauge Theory Seminar, Columbia University (2/06)
Representation Theory, Combinatorics and Geometry Seminar, Berkeley (1/06)
Knots in Washington, George Washington University, Washington (12/05): here are scanned slides from that talk: PDF.