Seminar Calendar
for events the day of Wednesday, September 29, 2010.

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Questions regarding events or the calendar should be directed to Tori Corkery.
     August 2010           September 2010          October 2010
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
1  2  3  4  5  6  7             1  2  3  4                   1  2
8  9 10 11 12 13 14    5  6  7  8  9 10 11    3  4  5  6  7  8  9
15 16 17 18 19 20 21   12 13 14 15 16 17 18   10 11 12 13 14 15 16
22 23 24 25 26 27 28   19 20 21 22 23 24 25   17 18 19 20 21 22 23
29 30 31               26 27 28 29 30         24 25 26 27 28 29 30
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Wednesday, September 29, 2010

Algebra, Geometry and Combinatorics Seminar
3:00 pm   in 7 Illini Hall,  Wednesday, September 29, 2010
 Del Edit Copy
Submitted by ecsima.
 Alexander Yong (UIUC Math)Drift configurations Abstract: I'll describe a parallel between two families of polynomials defined on pairs of permutations in the symmetric group. The first family consists of the celebrated Kazhdan-Lusztig polynomials from the representation theory of Hecke algebras. The second is comprised of the h-polynomials of local rings of Schubert varieties. This parallel is formalized with a conjectural positivity and semicontinuity property for the coefficients of the second family (respectively, analogues of theorems of D. Kazhdan-G. Lusztig, and of R. Irving). These conjectures are proved for Grassmannians, by introducing new "drift configuration" models for the polynomials. This is based on joint work with L. Li.

Math 499: Introduction to Graduate Mathematics
4:10 pm   in 245 Altgeld Hall,  Wednesday, September 29, 2010
 Del Edit Copy
Submitted by seminar.
 Joseph Rosenblatt (Department of Mathematics, University of Illinois)Uniform distribution and ergodic theoryAbstract: We will talk about uniform distribution of sequences, both known results and some open questions. We will see how this leads naturally into the study of averages in ergodic theory. These areas of mathematics use of variety of methods including methods from number theory, harmonic analysis, and measure theory.