COLUMBIA UNIVERSITY

Department of Mathematics

Group Number Theory: (H. Bass, N. Benakli)
Jeremy Shor
"A Scott conjecture for hyperbolic goups"
4:00-5:30 p.m., 507 Math.

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Jordan Ellenberg (Princeton)
"Hilbert-Blumental abelian varieties and Diophantine equations"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Eilenberg Lectures:
Shing-Tung Yau (Harvard & Columbia)
"Non-Linear differential equations and geometry"
4:30 p.m., 507 Math.

Applied Mathematics Colloquim: (C.K. Chu), jointly sponsored by
the Applied Mathematics Division, Applied Physics Department and
the Department of Mathematics
Dr. Shmuel Winograd (IBM, T.J. Watson)
"Factorization of polynomial fields of characteristic 2"
4:30 p.m., 414 Schapiro (CEPSR)

Geometry and Analysis: (R. Hamilton, M. Kuranishi, D.H. Phong)
Zhiqin Lu
"On the asymptotic expansion of Zelditch"
2:30 p.m., 507 Math.

Probability: (I. Karatzas)
Hui Wang (Statistics, Columbia)
"Utility maximization with discretionary stopping"
11:00 a.m. - 12:15 p.m., 520 Math.

Arithmetic Algebraic Geometry: (L. Szpiro, S.W. Zhang)
NO SEMINAR THIS WEEK.

Geometric Topology: (J. Birman, B. Mangum)
Joel Hass (US Davis)
"Unknotting discs and isoperimetric inequalities"
1:15 p.m., 507 Math.

Algebraic Geometry: (R. Friedman, M. Thaddeus)
Lev Borisov
"Vertex algebras and mirror symmetry"
1:30 p.m., 417 Math.