Algebra and Algebraic Geometry Seminar Fall 2020: Difference between revisions
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|[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/ Series of 4 lectures at Imperial College] | ||
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|October 7 | |October 7 | ||
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== Abstracts == | == Abstracts == | ||
===Andrei Caldararu=== | ===Andrei Caldararu=== | ||
''' | '''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. | |||
Series of 4 talks at Imperial College. | Series of 4 talks at Imperial College. | ||
Revision as of 15:38, 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
| date | speaker | title | host(s) |
|---|---|---|---|
| September 14 | Andrei Căldăraru (Madison) | Categorical Enumerative Invariants | Series of 4 lectures at Imperial College |
| October 7 | Shamgar Gurevich (Madison) | TBD |
Abstracts
Andrei Caldararu
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.
Series of 4 talks at Imperial College.
Shamgar Gurevich
TBD
Talk in Sydney, Australia.