Events Mini Calendar

Go to previous month Go to next month
  S M T W R F S
W36 30 31 1 2 3 4 5
W37 6 7 8 9 10 11 12
W38 13 14 15 16 17 18 19
W39 20 21 22 23 24 25 26
W40 27 28 29 30 1 2 3


Today is:
Mon, Nov 23, 2020


MSU Events Calendar

 
 Choose Calendar view:   Day   Week   Month     Search   Filter

3:00pm
to
3:50pm
Math Seminar Series  (Conferences / Seminars / Lectures)

Combinatorics and Graph Theory

Samantha Dahlberg from Arizona State University will be speaking.

The seminar is titled "Diameters of Graphs of Reduced Words of Permutations."

This seminar will take place online via Zoom.

Abstract:
It is a classical result that any two reduced words of a permutation in the symmetric group can be transformed into one another by a sequence of long braid moves and commutation moves. In this talk we will discuss the diameters of these connected graphs formed from the reduced words connected by single moves. Recently, the diameter has been calculated for the longest permutation n...21 by Reiner and Roichman as well as Assaf. In this talk we present our results on diameters for certain classes or permutation . We also make progress on conjectured bounds of the diameter by Reiner and Roichman, which are based on the underlying hyperplane arrangement.

more information...


Location: Zoom link provided on Math Seminars page [map]
Price: free
Sponsor: Department of Mathematics
Contact: Department of Mathematics
phone pic (517) 353-0844