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DTSTART;TZID=America/Los_Angeles:20251104T160000
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SUMMARY:Claremont Topology Seminar: Robert Cass (Claremont McKenna College)
DESCRIPTION:We welcome all undergraduate/graduate students and faculty to attend topology seminar! \nSpeaker: Robert Cass (Claremont McKenna College) \nTitle: Schubert varieties are splinters \nAbstract: Schubert varieties are among the most well-studied singular algebraic varieties\, and they have numerous applications in combinatorics and representation theory. In positive characteristic\, Schubert varieties are known to be Frobenius split by the work of Mehta and Ramanathan. More recently\, Bhatt showed that the full flag variety for GL_n is a derived splinter by entirely different methods. In this talk\, we explain these concepts\, and we show how to generalize Bhatt’s result to all Schubert varieties. Our methods apply equally well to affine Schubert varieties\, which are of interest in number theory. This is joint work with João Lourenço.
URL:https://colleges.claremont.edu/ccms/event/robert-cass-claremont-mckenna-college/
LOCATION:Fletcher 104\, Pitzer College\, 1050 N Mills Ave\, Claremont\, 91711\, United States
CATEGORIES:Topology Seminar
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SUMMARY:Claremont Topology Seminar: Chris Grossack (UC Riverside)
DESCRIPTION:We welcome all undergraduate/graduate students and faculty to attend topology seminar! \nSpeaker: Chris Grossack (UC Riverside) \nTitle: Explicitly Computing Fukaya Categories of Surfaces \nAbstract: Fukaya categories are rich and interesting invariants of symplectic manifolds that are often difficult to compute in practice. In the case of surfaces\, however\, the computation becomes pleasantly combinatorial\, and can be carried out explicitly. In this expository talk we’ll explain why one might care about Fukaya categories and how one can compute them explicitly enough for computer implementation using tools from “Noncommutative Mirror Symmetry”. With any remaining time\, we’ll explain the ideas behind the speaker’s PhD thesis\, which relies heavily on this machinery.
URL:https://colleges.claremont.edu/ccms/event/claremont-topology-seminar-chris-grossack-uc-riverside/
LOCATION:Fletcher 104\, Pitzer College\, 1050 N Mills Ave\, Claremont\, 91711\, United States
CATEGORIES:Topology Seminar
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