Stanford University

Upcoming Events

Monday, January 27, 2020
12:30 PM
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Math 383-N
Yuval Wigderson

How many edges can you place in a graph on n vertices without creating a triangle? Some trial and error suggests that the best thing to do is to split your vertices into two classes of size n/2 and to connect all pairs in different classes, and indeed this is best possible. Starting from this…

Distinguished Lecture
Monday, January 27, 2020
2:00 PM
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History Corner 200 205
Professor Richard Stanley

A parking function of length n is a sequence a1, a2, . . . , an of positive integers whose increasing rearrangement b1 ≤ b2 ≤ · ·…

Monday, January 27, 2020
2:30 PM
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Math 383-N
Bogdan Zavyalov
Monday, January 27, 2020
4:00 PM
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Sequoia Hall 200
Laurent Miclo (U. Toulouse)
Tuesday, January 28, 2020
12:15 PM
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Math 384-I
Shintaro Fushida-Hardy

In general relativity, the universe is often formalized as a four-dimensional ``space-time”, i.e. a smooth manifold equipped with a signature (3,1) pseudo-Riemannian metric. I give an introduction to general relativity, motivating this…

Tuesday, January 28, 2020
1:00 PM
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Math 384-H
Sunghyuk Park (Caltech)

In 2016, Gukov, Putrov and Vafa conjectured the existence of invariants of 3-manifolds which are q-series with integer coefficients. They are expected to have a categorification in a sense of Khovanov homology. More recently, in 2019, Gukov and Manolescu studied the analogue of GPV…

Distinguished Lecture
Tuesday, January 28, 2020
2:00 PM
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Bldg 380 Room 384H
Professor Richard Stanley (MIT)

Let R be a commutative ring (with identity) and A an n × n matrix over R. Suppose there exist n × n matrices P, Q invertible over R for which PAQ is a…

Poincaré Lecture
Tuesday, January 28, 2020
4:30 PM
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Bldg 380 Room 380W
Professor Cliff Taubes (Harvard University)

Abstract:  Z/2 harmonic forms are closed and coclosed 1-forms with values in a real line bundle that is defined on the complement of a cxdimension 2 subvariety of a Riemannian manifold with their norms being zero on this same subvariety. These objects are now known…

Distinguished Lecture
Wednesday, January 29, 2020
2:00 PM
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Math 380-Y
Professor Richard Stanley (MIT)

Let P be a polygon in the plane with integer vertices. Suppose that the area of P is A and that has I interior lattice points and B lattice points on the boundary. Alexander Pick showed that A = (2I…

Wednesday, January 29, 2020
3:15 PM
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Math 383-N
Clifford Taubes (Harvard University)