Previous Conferences & Workshops

Nov
29
2017

Mathematical Conversations

Approximate prime numbers
6:00pm|Dilworth Room

Unfortunately counting prime numbers is hard. Fortunately, we can cheat by counting 'approximate prime numbers' which is much easier. Moreover, this allows us to say something about the primes themselves, and works in situations which seem well...

Nov
29
2017

Ruth and Irving Adler Expository Lecture in Mathematics

Lattices: from geometry to cryptography
4:00pm|S-101

Lattices are periodic arrangements of points in space that have attracted the attention of mathematicians for over two centuries. They have recently become an object of even greater interest due to their remarkable applications in cryptography. In...

Nov
29
2017

Analysis Seminar

Nonuniqueness of weak solutions to the Navier-Stokes equation
Tristan Buckmaster
2:00pm|S-101

For initial datum of finite kinetic energy Leray has proven in 1934 that there exists at least one global in time finite energy weak solution of the 3D Navier-Stokes equations. In this talk, I will discuss very recent joint work with Vlad Vicol in...

Nov
28
2017

Joint IAS/Princeton University Number Theory Seminar

Shimura curves and new $abc$ bounds
4:45pm|S-101

Existing unconditional progress on the abc conjecture and Szpiro's conjecture is rather limited and coming from essentially only two approaches: The theory of linear forms in $p$-adic logarithms, and bounds for the degree of modular parametrizations...

Nov
28
2017

Locally Symmetric Spaces Seminar

Automorphic forms and motivic cohomology III
1:45pm|S-101

In the lectures I will formulate a conjecture asserting that there is a hidden action of certain motivic cohomology groups on the cohomology of arithmetic groups. One can construct this action, tensored with $\mathbb C$, using differential forms...

Nov
28
2017

Computer Science/Discrete Mathematics Seminar II

Geometric complexity theory from a combinatorial viewpoint
10:30am|S-101

Geometric Complexity Theory (GCT) was developed by Mulmuley and Sohoni as an approach towards the algebraic version of the P vs NP problem, VP vs VNP, and, more generally, proving lower bounds on arithmetic circuits. Exploiting symmetries, it...

Nov
27
2017

Joint IAS/Princeton University Symplectic Geometry Seminar

Open Gopakumar-Vafa conjecture for rational elliptic surfaces
Yu-Shen Lin
4:00pm|S-101

We will explain a definition of open Gromov-Witten invariants on the rational elliptic surfaces and explain the connection of the invariants with tropical geometry. For certain rational elliptic surfaces coming from meromorphic Hitchin system, we...

Nov
27
2017

Theoretical Machine Learning Seminar

Beyond log-concavity: provable guarantees for sampling multi-modal distributions using simulated tempering Langevin Monte Carlo
Holden Lee
12:30pm|White-Levy Room

A fundamental problem in Bayesian statistics is sampling from distributions that are only specified up to a partition function (constant of proportionality). In particular, we consider the problem of sampling from a distribution given access to the...

Nov
27
2017

Computer Science/Discrete Mathematics Seminar I

Locally testable and locally correctable codes approaching the Gilbert-Varshamov bound
11:00am|S-101

We show that there exist binary locally testable codes (for all rates) and locally correctable codes (for low rates) with rate and distance approaching the Gilbert-Varshamov bound (which is the best rate-distance tradeoff known for general binary...