COLUMBIA UNIVERSITY

Department of Mathematics

Group Theory: (H. Bass, G. Rosenberg)
Michael Weingart
"Why is this Bass-Serre tree diffrent from all others? - continuation"
4:00-5:30 p.m., 528 Math.

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Glenn Stevens (Boston)
"Overconvergent cohomology and p-adic modular forms"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Special Geometric Topology: (B. Mangum)
Jeff Brock (Stanford)
"Iteration of mapping classes and limits of hyperbolic 3-manifolds"
4:30 p.m. to 6:00 p.m., 507 Math.

Geometry and Analysis I: (M. Kuranishi, I. Krichever)
Charles L. Epstein (Univ. of Penn)
"Relative indices and embeddings for 3-dimensional CR-manifolds"
2:30 p.m., 507 Math.

Probability: (I. Karatzas)
NO SEMINAR THIS WEEK.

Algebraic Geometry: (R. Friedman, M. Thaddeus)
Igor Krichever
"Symplectic and Riemannian structures on the moduli space of curves with differentials"
1:30 p.m., 417 Math.

Geometric Topology: (J. Birman, B. Mangum)
Emily Hamilton (Emory)
"Abelian subgroup separability"
1:15 p.m., 507 Math.

* New York Seminar on Arithmetic Geometry: (L. Szpiro, S.W. Zhang)
Bruce Jordan (Baruch, CUNY)
"The Tate-Shafarevich groups of Jacobians of Atkin-Lehner quotients of Shimura curves"
2:30 p.m., NOTE LOCATION: 507 Math., Columbia.

* This seminar will alternate between the Graduate Center of CUNY and the Math Dept.
of Columbia University.