Previous Conferences & Workshops

Dec
11
2012

Special Seminar

(1) Quantum Beauty; (2) Beauty in Mathematics
(1) Frank Wilczek; (2) Enrico Bombieri
2:45pm|S-101

(1) My lecture revolves around a question: Does the world embody beautiful ideas? That is a question that people have thought about for a long time. Pythagoras and Plato intuited that the world should embody beautiful ideas; Newton and Maxwell...

Dec
11
2012

Computer Science/Discrete Mathematics Seminar II

Combinatorial PCPs with Short Proofs
10:30am|S-101

The PCP theorem (Arora et. al., J. ACM 45(1,3)) asserts the existence of proofs that can be verified by reading a very small part of the proof. Since the discovery of the theorem, there has been a considerable work on improving the theorem in terms...

Dec
10
2012

Members’ Seminar

A Tricky Problem on Sums of Two Squares
2:00pm|S-101

A `toy model' for studying the probabilistic distribution of nodal curves of eigenfunctions of linear operators arises from the Laplacian on the standard real 2-torus. Here the eigenvalues are associate to integers m that are sum of two squares...

Dec
10
2012

Computer Science/Discrete Mathematics Seminar I

Matching: A New Proof for an Ancient Algorithm
Vijay Vazirani
11:15am|S-101

For all practical purposes, the Micali-Vazirani algorithm, discovered in 1980, is still the most efficient known maximum matching algorithm (for very dense graphs, slight asymptotic improvement can be obtained using fast matrix multiplication)...

Dec
07
2012

Joint IAS/Princeton University Symplectic Geometry Seminar

Open-Closed Gromov-Witten Invariants of Toric Calabi-Yau 3-Orbifolds
Chiu-Chu Melissa Liu
4:30pm|S-101

We study open-closed orbifold Gromov-Witten invariants of toric Calabi-Yau 3-orbifolds with respect to Lagrangian branes of Aganagic-Vafa type. We prove an open mirror theorem which expresses generating functions of orbifold disk invariants in terms...

Dec
07
2012

Analysis Seminar

Nonlinear Long-Range Resonant Scattering and Kink Dynamics
Avy Soffer
3:15pm|S-101

We study the nonlinear Klein-Gordon equation, in one dimension, with a qudratic term and variable coefficient qubic term. This equation arises from the asymptotic stability theory of the kink solution.Our main result is the global existence and...

Dec
06
2012

Joint IAS/Princeton University Number Theory Seminar

Monodromy and Arithmetic Groups
T. N. Venkataramana
4:30pm|Fine Hall 214

Monodromy groups arise naturally in algebraic geometry and in differential equations, and often preserve an integral lattice. It is of interest to know whether the monodromy groups are arithmetic or thin. In this talk we review the Deligne-Mostow...