COLUMBIA UNIVERSITY

Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Trevor Wooley (Michigan)
"Exponential sums, and solubility of diophantine equations in many variables"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Group Theory: (H. Bass, S. Mokhtari-Sharghi)
NO SEMINAR THIS WEEK.

Group Theory: (H. Bass, S. Mokhtari-Sharghi)
NO SEMINAR THIS WEEK.

New York Seminar on Geometry and Physics: (B. Greene)
Dan Kabat (IAS, Princeton)
"Introduction to M (atrix) theory - Part III of III"
10:30 a.m., 507 Math. Coffee will be served at 10:15 a.m., 508 Math.

Applied Mathematics Colloquim: (C.K. Chu), jointly sponsored by the Applied Mathematics Division, Applied Physics Department and the Department of Mathematics
Björn Engquist (Stockholm & UCLA)
"Numerical homogenization"
4:30 p.m., 312 Math. Tea will be served at 4:00 p.m., 508 Math.

Geometry and Analysis: (M. Kuranishi)
Huai-Dong Cao (Texas A&M)
"Singularities of the Kahler-Ricci flow and periodic orbits"
2:30 p.m., 507 Math.

Working Seminar-Critical Values of L-functions: (S.W. Zhang)
NO SEMINAR THIS WEEK.

Geometric Topology: (J. Birman, B. Mangum)
Michah Sageev (Rutgers)
"The 3-manifold theory of groups"
1:15 p.m., 507 Math.