Columbia's Industrial Engineering and Operations Research Dept.
Spring 2007 Financial Engineering Practitioners Seminar
Spring 2007 New York Quantitative Finance Seminar
Spring 2007 IEOR-DRO Seminars

Columbia's Math Dept.
Spring 2007 Gauge theory / Symplectic geometry
Geometry/Analysis Seminar
Applied Mathematics Colloquium
Mathematics Colloquium

New York Academy of Sciences