Previous Conferences & Workshops

Feb
25
2014

Non-equilibrium Dynamics and Random Matrices

Nearly time-periodic water waves
Jon Wilkening
2:00pm|S-101

We compute new families of time-periodic and quasi-periodic solutions of the free-surface Euler equations involving extreme standing waves and collisions of traveling waves of various types. A Floquet analysis shows that many of the new solutions...

Feb
25
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...

Feb
24
2014

Members’ Seminar

Zeros of polynomials via matrix theory and continued fractions
2:00pm|S-101

After a brief review of various classical connections between problems of polynomial zero localization, continued fractions, and matrix theory, I will show a few ways to generalize these classical techniques to get new results about some interesting...

Feb
24
2014

Computer Science/Discrete Mathematics Seminar I

An Almost-Linear-Time Algorithm for Approximate Max Flow in Undirected Graphs, and its Multicommodity Generalizations
11:15am|S-101

In this talk, I will describe a new framework for approximately solving flow problems in capacitated, undirected graphs, and I will apply it to find approximately maximum s-t flows in almost-linear time, improving on the best previous bound of \(...

Feb
21
2014

Joint IAS/Princeton University Symplectic Geometry Seminar

A criterion for generating Fukaya categories of fibrations
1:30pm|S-101

The Fukaya category of a fibration with singularities \(W: M \to C\), or Fukaya-Seidel category, enlarges the Fukaya category of \(M\) by including certain non-compact Lagrangians and asymmetric perturbations at infinity involving \(W\); objects...

Feb
21
2014

Special Seminar

Families of Lattice Polarized K3 Surfaces with Monodromy
Charles Doran
11:30am|S-101

We extend the notion of lattice polarization for K3 surfaces to families in a way that gives control over the action of monodromy on the algebraic cycles, and discuss the uses of this new theory in the study of families of K3 surfaces admitting...