COLUMBIA UNIVERSITY

Department of Mathematics

S E M I N A R S -

WEEK OF JANUARY 25, 1999

MONDAY, JANUARY 25

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

FRIDAY, JANUARY 29

Geometric Topology: (J. Birman, B. Mangum)
Daniel Allcock (Harvard)
"Braid pictures for Artin groups"
1:15 p.m., 507 Math.

Algebraic Geometry: (R. Friedman, M. Thaddeus)
Dave Bayer
"Syzygy varieties of toric varieties"
1:30 p.m., 417 Math.