This is to announce that Andras Stipsicz will give the first informal
symplectic geometry seminar today (Monday, Sept. 10) at 5:30 p.m. in Math
507. He'll be talking about his work on contact structures on Seifert
fibered three-manifolds.
There's also now a web page for the seminar, at:
http://math.columbia.edu/~lipshitz/iss
--Robert
Many apologies.
Dusa