Department of

Mathematics


Seminar Calendar
for events the day of Thursday, November 19, 2020.

     .
events for the
events containing  

(Requires a password.)
More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery. 
     October 2020          November 2020          December 2020    
 Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
              1  2  3    1  2  3  4  5  6  7          1  2  3  4  5
  4  5  6  7  8  9 10    8  9 10 11 12 13 14    6  7  8  9 10 11 12
 11 12 13 14 15 16 17   15 16 17 18 19 20 21   13 14 15 16 17 18 19
 18 19 20 21 22 23 24   22 23 24 25 26 27 28   20 21 22 23 24 25 26
 25 26 27 28 29 30 31   29 30                  27 28 29 30 31

Thursday, November 19, 2020

3:00 pm in Zoom,Thursday, November 19, 2020
Algebra, Geometry and Combinatorics

(Co)vexillary Schubert varieties and Kazhdan-Lusztig polynomials

Minyoung Jeon   [email] (The Ohio State University)

Abstract: Kazhdan and Lusztig constructed Kazhdan-Lusztig polynomials as an application of intersection cohomology theory of Deligne-Goresky-MacPherson for the rational smoothness of Schubert varieties in the flag variety in the late 70s. The rational smoothness from cohomological criteria is a weaker notion of smoothness. There have been the known characterizations of Kazhdan-Lusztig polynomial, Poincare polynomials for Schubert varieties in a projective homogeneous space due to Lascoux- Sch\"{u}tzenberger, Boe, Zelevenski, Sankaran and Vanchinathan. We conjecture analogue ones for (co)vexillary Schubert varieties and discuss how the proof is supposed to go, based on the method by Anderson, Ikeda, Jeon and Kawago. Please email Colleen at cer2 (at) illinois (dot) edu for the Zoom ID and password.

Submitted by cer2