COLUMBIA UNIVERSITY - Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
George Pappas (Princeton)
"Galois covers and cyclotomic class groups"
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)
NO SEMINAR THIS WEEK.

Applied Mathematics Colloquim: (C.K. Chu), jointly sponsored by the Applied Mathematics Division, Applied Physics Department and the Department of Mathematics
Louis Tao (Astro-Physics Laboratory, Columbia)
"Computational MHD convection"
4:30 p.m., 214 S.W. Mudd.

Geometry and Analysis: (M. Kuranishi, D.H. Phong)
Almut Burchard (Princeton)
"Continuity of Steiner symmetrization"
2:30 p.m., 507 Math.

Working Seminar - Trees and Related Topics: (N. Benakli, Y. Glasner, S. Mokhtari-Sharghi)
Shahriar Mokhtari-Sharghi
"Trees and SL2" - continuation
6:30 p.m., 507 Math.

Geometric Topology: (J. Birman, B. Mangum)
Gregor Masbaum (University of Paris VI)
"The Kontsevich integral and Milnor's invariants"
1:00 p.m., 507 Math.

Geometric Topology: (J. Birman, B. Mangum)
Mikhail Khovanv (IAS)
"A categorification of the Jones polynomial"
2:00 p.m., 507 Math.

Algebraic Geometry: (R. Friedman)
Michael Thaddeus
"The quantum cohomology of a symmetric product of a curve"
3:00 p.m., 417 Math.
PLEASE NOTE: THIS SEMINAR USUALLY MEETS AT 1:10 P.M. BUT WILL BE MEETING AT 3:00 P.M. TODAY.
TODAY THIS SEMINAR WILL REPLACE Working Seminar-Syzygies and Geometry: (D. Bayer, H. Pinkham, S. Popescu).