Monday, October 31, 2022

Monday, October 31, 2022 — 3:00 PM EDT

Title: Cliques in dense matroids

Speaker: Fernanda Rivera Affiliation: University of Waterloo Location: MC 6029

Abstract: We will give a singly exponential bound on the number of points a $U_{2,q+2}$-minor-free matroid can have without containing $M(K_{q+2})$ as a minor.

Monday, October 31, 2022 — 11:30 PM EDT

Title: Equiangular lines and algebraic number theory

Speaker: Ingemar Bengtsson Affiliation: Stockholm University Location: contact Sabrina Lato for Zoom link

Abstract: It is believed that SICs, that is maximal equiangular tight frames, exist in all complex vector spaces. To construct them we use the Weyl-Heisenberg groups, and hence the cyclotomic numbers (roots of unity).

S M T W T F S
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
  1. 2023 (10)
    1. February (2)
    2. January (8)
  2. 2022 (150)
    1. December (8)
    2. November (18)
    3. October (15)
    4. September (11)
    5. August (2)
    6. July (17)
    7. June (17)
    8. May (10)
    9. April (12)
    10. March (18)
    11. February (10)
    12. January (13)
  3. 2021 (103)
  4. 2020 (119)
  5. 2019 (167)
  6. 2018 (136)
  7. 2017 (103)
  8. 2016 (137)
  9. 2015 (136)
  10. 2014 (88)
  11. 2013 (48)
  12. 2012 (39)
  13. 2011 (36)
  14. 2010 (40)
  15. 2009 (40)
  16. 2008 (39)
  17. 2007 (15)