SMS scnews item created by Anthony Henderson at Thu 11 Sep 2008 1702
Type: Seminar
Modified: Fri 12 Sep 2008 1450
Distribution: World
Expiry: 19 Sep 2008
Calendar1: 19 Sep 2008 1205-1255
CalLoc1: Carslaw 159
CalTitle1: Algebra Seminar: Guilhot -- On the lowest two-sided cell in an affine Weyl group

Algebra Seminar

On the lowest two-sided cell in an affine Weyl group

Jeremie Guilhot

19th September, 12:05-12:55pm, Carslaw 159


In this talk, I will present the notion of affine Weyl groups and Kazhdan-Lusztig cells. Using a geometric presentation of an affine Weyl group, I will then establish, in the unequal parameter case, an upper bound for the number of left cells in the lowest two-sided cell, which generalizes the results of Bremke, Xi and Shi.

(The usual lunch after the Seminar will not take place, because of the Honours Information Session.)

See the Algebra Seminar web page for information about other seminars in the series.

Anthony Henderson

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