COLUMBIA UNIVERSITY

Department of Mathematics

S E M I N A R S -

WEEK OF MARCH 1, 1999

MONDAY, MARCH 1

Geometry and Analysis I: (M. Kuranishi, I. Krichever)
Tohru Morimoto (Kyoto University of Education)

"Geometry of Monge-Ampere equations"
NOTE DAY & LOCATION: 2:30 p.m., 405 Math.

Group Theory: (H. Bass, G. Rosenberg)
Shahriar Mokhtari-Sharghi (Long Island)
"Cheeger inequality and tree lattices"
4:00-5:30 p.m., 528 Math.

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Christopher Skinner (IAS)

"Modular forms and residually reducible representations"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

WEDNESDAY, MARCH 3

Geometry and Analysis I: (M. Kuranishi, I. Krichever)
Bernard Malgrange (Grenoble)

"On the characteristic variety of differential systems"
NOTE DAY: 2:30 p.m., 405 Math.

FRIDAY, MARCH 5

Probability: (I. Karatzas)
NO SEMINAR THIS WEEK.

Algebraic Geometry: (R. Friedman, M. Thaddeus)
Bin Wang (Brown)
"Linking multiplicity and Clemens's conjecture"
NOTE TIME: 2:00 p.m., 417 Math.

Geometric Topology: (J. Birman, B. Mangum)
Yair Minsky (Stonybrook)
"Navigating in the complex of curves and the mapping class group"
1:15 p.m., 507 Math.