COLUMBIA UNIVERSITY

Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Ram Murty (IAS & Queens University, Canada)
"On a Conjecture of Kummer"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Colloquium: (D. Goldfeld)
Pavel Etingof (MIT)
"Differential Galois groups and quantum integrable systems"
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)
Massimo Porrati (NYU/Physics)
"Nonperturbative results in field theory from string duality"
11:30 a.m., 705 Pupin

Geometry and Analysis I: (R. Hamilton, M. Kuranishi)
Hubert Bray (MIT)
"Proof of the Riemannian Penrose conjecture using the positive mass theorem"
4:00 p.m., 507 Math. - No Seminar has been scheduled as of yet.

Probability: (I. Karatzas)
Evarist Gine (U Conn.)
"Recent advances in the asymptotic theory of U-statistics"
11:00-12:15 p.m., 520 Math.

Geometric Topology: (J. Birman, T. Brendle)
Slava Krushkal (Yale University)
"On the four-dimensional disk theorem"
1:15 p.m., 507 Math.

Algebraic Geometry: (M. Thaddeus)
Igor Dolgachev (Michigan & Harvard)
"Fixed points of a Cremona transformation"
3:30 p.m., 417 Math.