Algebra and Algebraic Geometry Seminar Fall 2020: Difference between revisions
No edit summary |
No edit summary |
||
| Line 18: | Line 18: | ||
|[http://www.math.wisc.edu/~andreic/ Andrei Căldăraru (Madison)] | |[http://www.math.wisc.edu/~andreic/ Andrei Căldăraru (Madison)] | ||
|[[#Andrei Caldararu|Categorical Enumerative Invariants]] | |[[#Andrei Caldararu|Categorical Enumerative Invariants]] | ||
|[https://sites.google.com/view/catgw/ Talk 1/4 in lecture series at Imperial College] | |[https://sites.google.com/view/catgw/ Talk 1/4 in lecture series at Imperial College - You need to register here to get the link to the talk!] | ||
|- | |- | ||
|September 21 | |September 21 | ||
Revision as of 15:47, 13 September 2020
The Virtual Seminar will take place on Fridays at 2:30 pm via Zoom. We will also link to relevant or interesting Zoom talks outside of the seminar.
Algebra and Algebraic Geometry Mailing List
- Please join the AGS Mailing List to hear about upcoming seminars, lunches, and other algebraic geometry events in the department (it is possible you must be on a math department computer to use this link).
COVID-19 Update
As a result of Covid-19, the seminar for this semester will be held virtually.
Fall 2020 Schedule
Abstracts
Andrei Căldăraru
Categorical Enumerative Invariants
I will talk about recent papers with Junwu Tu, Si Li, and Kevin Costello where we give a computable definition of Costello's 2005 invariants and compute some of them. These invariants are associated to a pair (A,s) consisting of a cyclic A∞-algebra and a choice of splitting s of its non-commutative Hodge filtration. They are expected to recover classical Gromov-Witten invariants when A is obtained from the Fukaya category of a symplectic manifold, as well as extend various B-model invariants (solutions of Picard-Fuchs equations, BCOV invariants, B-model FJRW invariants) when A is obtained from the derived category of a manifold or a matrix factorization category.
Shamgar Gurevich
TBD
Talk in Sydney, Australia.