BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
PRODID:-//Virginia Tech//VT Calendar//EN
BEGIN:VEVENT
DTSTAMP:20201105T200000Z
UID:1604065953966@events.msu.edu
CATEGORIES:Conferences / Seminars / Lectures
DTSTART:20201105T200000Z
DTEND:20201105T205000Z
SUMMARY:Math Seminar Series
DESCRIPTION:
Combinatorics and Graph Theory\n
\n
Thomas McConville
from Kennesaw State University will be
speaking.\n
\n
The presentation is titled "The
non-revisiting chain property for grid associahedra."\n
\n
Contact
Bruce E Sagan (bsagan@msu.edu)
for more information.\n
\n
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.\n\n
Price: free\n
Sponsor: Department of Mathematics\n
Sponsor's Homepage: https://www.math.msu.edu/\n
Contact name: Department of Mathematics\n
Contact phone: (517) 353-0844\n
for more info visit the web at:\n
https://www.math.msu.edu/Seminars/CalendarView.aspx?month-of=September2016\n
LOCATION:Zoom link provided on Math Seminars page
END:VEVENT
END:VCALENDAR