Stanford University

Upcoming Events

Tuesday, April 20, 2021
10:00 AM
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Zoom
Brendan Owens (University of Glasgow)

I will describe joint work with Frank Swenton resulting in a highly successful but still imperfect method of finding ribbon disks for alternating knots.  The mathematical underpinning is Donaldson’s diagonalisation theorem.  I will explain and generalise the obstruction this gives…

Tuesday, April 20, 2021
3:00 PM
Eric Kilgore
Wednesday, April 21, 2021
12:00 PM
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Zoom: Please email Lenya Ryzhik (ryzhik@math.stanford.edu) to be added to seminar mailing list.
Pierre Degond (Imperial College)

Abstract : States of matter (such as solid, liquid, etc) are characterized by different types of order associated with local invariances under different transformation groups. Recently, a new notion of topological order, popularized by the 2016 physics nobel prize awarded to Haldane, Kosterlitz…

Wednesday, April 21, 2021
2:00 PM
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Zoom
Jared Marx-Kuo

In this workshop we'll discuss an efficient way for Stanford Math graduate students to communally host teaching resources from past iterations of courses, including but not limited to: section handouts, course notes, problem set sheets, problem set solutions. We'll brainstorm what ways we need…

Wednesday, April 21, 2021
2:00 PM
Donghyun Kim

The inhomogeneous totally asymmetric simple exclusion process (or TASEP) is a Markov chain on the set of permutations, in which adjacent numbers i and j swap places at rate x_i - y_j if the larger number is clockwise of the smaller. Conjecturally, steady state probabilities can be written as a…

Friday, April 23, 2021
11:00 AM
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Zoom: Please email Jonathan Luk (jluk@stanford.edu) for Zoom link.
Stefanos Aretakis (University of Toronto)

Abstract: We will present the precise late-time asymptotics for scalar fields on both extremal and sub-extremal black holes including the full Reissner-Nordstrom family and the subextremal Kerr family. Asymptotics for higher angular modes will be presented for all cases. Applications in…

Friday, April 23, 2021
11:30 AM
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Zoom
Sourav Chatterjee (Stanford)

The growth of random surfaces has attracted a lot of attention in probability theory in the last ten years, especially in the context of the Kardar-Parisi-Zhang (KPZ) equation. Most of the available results are for exactly solvable one-dimensional models. In this talk I will present some recent…

Friday, April 23, 2021
12:00 PM
Michael Temkin (HUJI)

I will talk about a recent series of works with Abramovich and Wlodarczyk, where a logarithmic analogue of the classical resolution of singularities of schemes in characteristic zero is constructed. Already for usual schemes, the logarithmic algorithm is faster and more functorial, though as a…

Monday, April 26, 2021
11:00 AM
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Online
Amol Aggarwal (Columbia)
Monday, April 26, 2021
12:30 PM
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Zoom
William Chen (Columbia University)

Abstract: Following Bourgain, Gamburd, and Sarnak, we say that the Markoff equation x^2 + y^2 + z^2 - 3xyz = 0 satisfies strong approximation at a prime p if its integral points surject onto its F_p points. In 2016, Bourgain, Gamburd, and Sarnak were able to establish strong approximation…