Stanford University

Upcoming Events

Tuesday, September 29, 2020
10:00 AM
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Zoom
Yi Ni (Caltech)

It is well known that the genus g of a knot is the highest Alexander grading for which the knot Floer homology is nontrivial. In recent years, there is evidence suggesting that the knot Floer homology is also nontrivial in the Alexander grading g-1. In this talk, I will describe a proof that the…

Wednesday, September 30, 2020
12:00 PM
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Zoom: Please email Lenya Ryzhik (ryzhik@math.stanford.edu) to be added to seminar mailing list.
Will Feldman, University of Utah
Wednesday, September 30, 2020
12:30 PM
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TBD
Wednesday, September 30, 2020
3:15 PM
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Zoom
Chao Li (Princeton)

It has been a classical question which manifolds admit Riemannian metrics with positive scalar curvature. I will present some recent progress on this question, ruling out positive scalar curvature on closed aspherical manifolds of dimensions 4 and 5 (as conjectured by Schoen-Yau and by Gromov),…

Wednesday, September 30, 2020
4:30 PM
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TBD
Thursday, October 1, 2020
2:00 PM
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TBD
Thursday, October 1, 2020
4:00 PM
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Zoom: available on the student_symplectic mailing list
Paul Falcone
Thursday, October 1, 2020
4:30 PM
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TBD
Friday, October 2, 2020
12:00 PM
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zoom
Juliette Bruce (Berkeley)

Abstract:  I will discuss recent work calculating the top weight cohomology of the moduli space $A_g$ of principally polarized abelian varieties of dimension $g$ for small values of $g$. The key idea is that this piece of cohomology is encoded combinatorially via the…

Friday, October 2, 2020
12:30 PM
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TBD