2018-2019 Academic Year

Pretalks begin an hour earlier in LC 303B (unless otherwise indicated)


Date Room Speaker Title Host
Aug 15
11:00am
LC 312 Luigi Ferraro
(Wake Forest)
Hopf algebra actions on some AS-regular algebras of small GK-dimension
(No pretalk)
Kustin
Aug 24
3:30pm
LC 303B -
- -
Aug 31
3:30pm
LC 303B -
- -
Sep 7
3:30pm
LC 303B -
- -
Sep 14
3:30pm
LC 303B -
- -
Sep 21
3:30pm
LC 303B -
- -
Sep 28
3:30pm
LC 303B -
- -
Oct 5
3:30pm
LC 303B -
- -
Oct 12
3:30pm
LC 303B Yoav Len
(Georgia Tech)
TBA Kass

Fall Break

Oct 26
3:30pm
LC 303B -
- -
Nov 2
3:30pm
LC 303B -
- -
Nov 9
3:30pm
LC 303B -
- -
Nov 16
3:30pm
LC 303B -
- -

Thanksgiving Break

Nov 30
3:30pm
LC 303B -
- -
Dec 7
3:30pm
LC 303B -
- -

Winter Break



Abstracts

Luigi Ferraro - Hopf algebra actions on some AS-regular algebras of small GK-dimension

The classical Chevalley-Shephard-Todd Theorem gives a characterization of when a group acting linearly on the commutative polynomial ring has a ring of invariants that is isomorphic to a polynomial ring. Understanding when group actions (or more generally, Hopf actions) on AS-regular algebras give AS-regular invariant rings has proven to be a difficult problem. We provide some new examples of Hopf actions on some AS-regular algebras such that the ring of invariants is also AS-regular.



Last year's seminar.