COLUMBIA UNIVERSITY

Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Lev Borisov
"Toric varieties and modular forms"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Colloquium: (D. Goldfeld)
Kari Vilonen (Brandeis)
"Geometry and representation theory"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

New York Seminar on Geometry and Physics: (B. Greene, M. Faux)
Brian Greene
"An overview of string theory"
11:30 a.m., 705 Pupin

Geometric Topology: (J. Birman, T. Brendle)
Douglas Zare
"A geometric invariant in contact structures on 3-manifolds, Part 1"
1:15 p.m., 507 Math.

IMPORTANT: CANCELLED
Algebraic Geometry: (M. Thaddeus)
János Kollár (Princeton)
"The nonprojective Nash conjecture for threefolds"
3:30 p.m., 417 Math.