## University COVID-19 update

### Questions about buildings and services? Visit the list of Modified Services.

Please note: The University of Waterloo is closed for all events until further notice.

# Tutte seminar - Anna Bertiger

Friday, September 27, 2013 — 3:30 PM to 4:30 PM EDT

## The Rim Hook Rule: Relating Quantum Cohomology of the Grassmannian to Ordinary Cohomology of the Grassmannian

Speaker: Anna Bertiger University of Waterloo Mathematics and Computer Building (MC) 5158

### Abstract:

I will present the cohomology ring of the Grassmannian of k planes in $\mathbb{C}^n$, roughly a ring with generators related to subspaces of the Grassmannian and product related to overlaps up to translation. It turns out this is a nice polynomial ring with many combinatorial properties. The same is true of the quantum cohomology ring of the Grassmannian, which has the same generators with a product given by curves joining the subspaces, rather than overlap. These two geometrically motivated rings, which seem very different are related by a result of Bertram, Ciocan-Fontanine and Fulton. I will explain this result, and also a new equivariant version of this result. I intend for the talk to be friendly, with all of the geometric notions defined.

This is joint work with Liz Beazley and Kaisa Taipale.

Location
MC - Mathematics & Computer Building
5158
200 University Avenue West

Waterloo, ON N2L 3G1

### April 2021

S M T W T F S
28
29
30
31
2
3
4
5
6
7
10
11
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
1. 2021 (37)
1. April (6)
2. March (13)
3. February (8)
4. January (10)
2. 2020 (119)
1. December (5)
2. November (12)
3. October (12)
4. September (12)
5. August (11)
6. July (17)
7. June (11)
8. May (6)
9. March (11)
10. February (11)
11. January (11)
3. 2019 (167)
4. 2018 (136)
5. 2017 (103)
6. 2016 (137)
7. 2015 (136)
8. 2014 (88)
9. 2013 (48)
10. 2012 (39)
11. 2011 (36)
12. 2010 (40)
13. 2009 (40)
14. 2008 (39)
15. 2007 (15)