Previous Special Year Seminar

Mar
21
2012

Working Group on Symplectic Dynamics

An Instability Mechanism Along the Mean Motion Resonances in the Restricted Three Body Problem
4:00pm|S-101

We consider the Restricted Planar Elliptic 3 Body Problem, which models the Sun, Jupiter and an Asteroid (which we assume that has negligible mass). We take a realistic value of the mass ratio between Jupiter and the Sun and their eccentricity...

Mar
21
2012

Symplectic Dynamics Seminar

Arnold Diffusion via Normally Hyperbolic Invariant Cylinders and Mather Variational Method, Part II
2:00pm|S-101

In 1964 Arnold constructed an example of instabilities for nearly integrable systems and conjectured that generically this phenomenon takes place. There has been big progress attacking this conjecture in the past decade. Jointly with Ke Zhang we...

Mar
08
2012

Introduction to Polyfolds

A Simple Example of an M-Polyfold Relevant to Morse Theory
2:00pm|S-101

Both of these talks will be useful preparation for Helmut Hofer's up coming mini-course on polyfold theory on April 4th and 5th.