Previous Conferences & Workshops

Mar
04
2014

Computer Science/Discrete Mathematics Seminar II

Fast matrix multiplication
10:30am|S-101

How many arithmetic operations does it take to multiply two square matrices? This question has captured the imagination of computer scientists ever since Strassen showed in 1969 that \(O(n^{2.81})\) operations suffice. We survey the classical theory...

Mar
03
2014

Members’ Seminar

Topologies of nodal sets of random band limited functions
2:00pm|S-101

We discuss various Gaussian ensembles for real homogeneous polynomials in several variables and the question of the distribution of the topologies of the connected components of the zero sets of a typical such random real hypersurface. For the "real...

Mar
03
2014

Computer Science/Discrete Mathematics Seminar I

The Green-Tao theorem and a relative Szemeredi theorem
Yufei Zhao
11:15am|S-101

The celebrated Green-Tao theorem states that there are arbitrarily long arithmetic progressions in the primes. In this talk, I will explain the ideas of the proof and discuss our recent simplifications. One of the main ingredients in the proof is a...

Feb
28
2014

Joint IAS/Princeton University Symplectic Geometry Seminar

Implicit atlases and virtual fundamental cycles
1:30pm|Fine 322, Princeton University

An implicit atlas on a (moduli) space consists of certain auxiliary (moduli) spaces satisfying a precise set of axioms. We will summarize the construction of implicit atlases on moduli spaces of \(J\)-holomorphic curves, under the assumption of a...

Feb
28
2014

Non-equilibrium Dynamics and Random Matrices

Many-body Anderson localization
David Huse
11:00am|S-101

I will review some aspects of many-body Anderson localization. Many-body localized systems have a type of integrable Hamiltonian, with an extensive set of operators that are localized in real-space that each commute with the Hamiltonian. The...

Feb
27
2014

Joint IAS/Princeton University Number Theory Seminar

Sigel units and Euler systems
Antonio Lei
4:30pm|Fine 214, Princeton University

An Euler system is a family of cohomology classes that satisfy some compatibility condition under the corestriction map. Kato constructed an Euler system for a modular form over the cyclotomic extensions of \(\mathbb{Q}\). I will explain a recent...

Feb
27
2014

Non-equilibrium Dynamics and Random Matrices

From High Dimensional Data to Big Data
Han Liu
2:00pm|S-101

We introduce a new family of robust semiparametric methods for analyzing large, complex, and noisy datasets. Our method is based on the transelliptical distribution family which assumes that the variables follow an elliptical distribution after a...

Feb
27
2014

Non-equilibrium Dynamics and Random Matrices

Quantum Hall Phases, plasma analogy and incompressibility estimates
Jakob Yngvason
11:00am|S-101

When a 2D many-particle system with a repulsive interaction is subject to a sufficiently strong magnetic field, that can also be produced by rapid rotation, strongly correlated many-body states in the lowest Landau level LLL may emerge. In the talk...

Feb
26
2014

Mathematical Conversations

Non-associative division algebras and projective geometry
6:00pm|Dilworth Room

Projective planes satisfying certain symmetry conditions correspond to non-associative division algebras, by the work of Hilbert, Dickson, Albert, Wedderburn and Veblen. Knuth began the attempt to classify them over finite fields, and very few...