Title: Minimal Discrepancy of Isolated Singularities and Reeb Orbits Continued
Speaker: Mark McLean, MIT
Date: Tuesday, February 18, 2014
Time: 11:15am-12:30pm
Place: Seminar Room 313, Simons Center
[box, type=”download”]Watch the video.[/box]
Abstract: Recall from the previous lecture, if A is an isolated singularity satisfying additional conditions then there is an invariant md(A) called the minimal discrepancy. Also from the previous lecture, for a contact manifold C we introduced an invariant md(C) calculated using indices of Reeb orbits. In this lecture we will show (roughly) that md(A) is greater than or equal to md(L_A) where L_A is a contact manifold called the link of A. This is the easier half of the proof. After that we will begin to show (using pseudo holomorphic curve theory) that md(A) is less than or equal to md(L_A).
Notes from Mark’s talk covering the essential bits of singularity theory required are at: http://www.math.ias.edu/~nelson/seminar/mclean1.pdf