Events Mini Calendar

Go to previous month Go to next month
  S M T W R F S
W45 1 2 3 4 5 6 7
W46 8 9 10 11 12 13 14
W47 15 16 17 18 19 20 21
W48 22 23 24 25 26 27 28
W49 29 30 1 2 3 4 5


Today is:
Wed, Nov 25, 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

Thomas McConville from Kennesaw State University will be speaking.

The presentation is titled "The non-revisiting chain property for grid associahedra."

Contact Bruce E Sagan (bsagan@msu.edu) for more information.

A grid associahedron is a simple polytope whose faces correspond to nonkissing collections of routes inside a grid graph. The usual associahedron arises as a special case when the graph is a 2 by n rectangle. Other examples of grid associahedra have been considered in connection with combinatorial properties of Grassmannians and with the representation theory of gentle algebras. The 1-skeleton of the grid associahedron has a natural orientation that induces the grid-Tamari order, a poset with many remarkable properties. I will present a new construction of the grid associahedron as a Minkowski sum of order polytopes of fence posets. Using this construction, I will show that the grid-Tamari order has the non-revisiting chain property. This is based on joint work with Alexander Garver.

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