COLUMBIA UNIVERSITY

Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S. Zhang)
SPEAKER: TBA
TITLE: TBA
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Group Theory: (H. Bass, S. Mokhtari-Sharghi)
Yair Glasner (Hebrew Univ.)
"On the arithmatic uniform lattices in Aut (the product of two trees)-continuation"
9:00 a.m., 507 Math.

Group Theory: (H. Bass, S. Mokhtari-Sharghi)
Hyman Bass
"Burahat-Tits tree-continuation"
9:00 a.m., 507 Math.

New York Seminar on Geometry and Physics: (B. Greene)
SPEAKER: TBA
TITLE: TBA

Applied Mathematics Colloquim: (C.K. Chu), jointly sponsored by the Applied Mathematics Division, Applied Physics Department and the Department of Mathematics
Shing-Tung Yau (Harvard)
"Mirror symmetry"
4:30 p.m., 312 Math. Tea will be served at 4:00 p.m., 508 Math.

Geometry and Analysis: (M. Kuranishi)
Chris Sogge (John Hopkins)
"On Nikodym sets in curved spaces"
2:30 p.m., 507 Math.

Working Seminar-Critical Values of L-functions: (S. Zhang)
SPEAKER: TBA
TITLE: TBA
11:00 a.m., 507 Math.

Geometric Topology: (J. Birman, B. Mangum)
Brian Mangum
"Ohtsuki's construction of the incompressible surfaces of Culler and Shalen"
1:15 p.m., 507 Math.