COLUMBIA UNIVERSITY

Department of Mathematics

S E M I N A R S -

WEEK OF FEBRUARY 1, 1999

MONDAY, FEBRUARY 1

Group Number Theory: (H. Bass, N. Benakli)
NO SEMINAR THIS WEEK.

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Marc Nirenberg
"A bound on the poles of a two-variable p-adic L-function"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

FRIDAY, FEBRUARY 5

Probability: (I. Karatzas)
Anastasia Ruzmaikina (Princeton)
"Stochastic calculus with fractional Brownian motion"
520 Math., 11:00 a.m.

Geometric Topology: (J. Birman, B. Mangum)
Scott Carter (South Alabama)
"Non-trivial invariants of knotted and linked surfaces"
1:15 p.m., 507 Math.

Algebraic Geometry: (R. Friedman, M. Thaddeus)
Lev Borisov
"Toric varieties and modular forms"
NOTE TIME: 2:00 p.m., 417 Math.