Algebraic Geometry Seminar Fall 2017
The seminar meets on Fridays at 2:25 pm in Van Vleck B321.
Here is the schedule for the previous semester.
Contents
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Fall 2017 Schedule
date  speaker  title  host(s) 

October 6  Michael Brown (UWMadison)  Topological Ktheory of equivariant singularity categories  local 
October 9 (Monday!!, 3:304:30, B119)  Aaron Bertram (Utah)  LePotier's Strange Duality and Quot Schemes  Andrei 
October 27  [Dario Beraldo (Oxford)]  tba  Dima

December 1st  Juliette Bruce (UWMadison)  tba  local 
December 8  Melody Chan (Brown))  tba  Jordan 
Abstracts
Michael Brown
Topological Ktheory of equivariant singularity categories
This is joint work with Tobias Dyckerhoff. Topological Ktheory of complexlinear dg categories is a notion introduced by Blanc in his recent article "Topological Ktheory of complex noncommutative spaces". In this talk, I will discuss a calculation of the topological Ktheory of the dg category of graded matrix factorizations associated to a quasihomogeneous polynomial with complex coefficients in terms of a classical topological invariant of a complex hypersurface singularity: the Milnor fiber and its monodromy.
Aaron Bertram
LePotier's Strange Duality and Quot Schemes Finite schemes of quotients over a smooth curve are a vehicle for proving strange duality for determinant line bundles on moduli spaces of vector bundles on Riemann surfaces. This was observed by Marian and Oprea. In work with Drew Johnson and Thomas Goller, we extend this idea to del Pezzo surfaces, where we are able to use it to prove cases of Le Potier's strange duality conjecture.