COLUMBIA UNIVERSITY

Department of Mathematics

S E M I N A R S -

Week of October 12, 1998



MONDAY, October 12

Group Number Theory: (H. Bass, N. Benakli)
Hyman Bass
"Discreteness criteria for tree automorphism groups" - Continuation
4:00-5:30 p.m., 507 Math.

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Jean-Benoit Bost (IHES, France & IAS)
"Hyperelliptic curves, Neron-Tate heights, and capacity"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

TUESDAY, October 13

Geometry and Analysis Seminar: (R. Hamilton, M. Kuranishi, D.H. Phong)
Richard Schoen (Stanford)
"Lagrangian Minimal Surfaces"
3:00 p.m., 507 Math. -
NOTE: SPECIAL TIME, DATE & LOCATION.

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

WEDNESDAY, October 14

ADDITIONAL: Geometric Topology: (J. Birman, B. Mangum)
Sergei Chmutov (Mt Holyoke)
"Legendrian links and theirs invariants"
4:15 p.m., 405 Math.
NOTE ADDITIONAL SEMINAR:
SPECIAL TIME, DATE & LOCATION.

FRIDAY, October 16

Arithmetic Algebraic Geometry: (L. Szpiro, S.W. Zhang)
Shou-Wu Zhang
"Diophantine approximation (II)"
11:00 a.m., 507 Math.

Algebraic Geometry: (R. Friedman, M. Thaddeus)
Robert Friedman
"Commuting elements in compact Lie groups"
1:30 p.m., 417 Math. NOTE SPECIAL TIME.

Geometric Topology: (J. Birman, B. Mangum)
Darren Long (UC Santa Barbara)
"Integral points on character varieties"
1:15 p.m., 507 Math.