COLUMBIA UNIVERSITY

Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Alexander Berkovich (Stony Brook)
"Trinomial analogue of Belyi's lemma"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

Group Theory: (H. Bass, S. Mokhtari-Sharghi)
Yair Glasner (Hebrew Univ.),
"On the arithmatic uniform lattices in Aut (the product of two trees) - continuation"
9:00 a.m., 507 Math.

Group Theory: (H. Bass, S. Mokhtari-Sharghi)
Nadia Benakli, "On JSJ decomposition - continuation"
9:00 a.m., 507 Math.

New York Seminar on Geometry and Physics: (B. Greene)
A.S. Schwarz (UC, Davis& Rutgers)
"Introduction to M(matrix) theory and non-commutative geometry"
10:30 a.m., 507 Math. Coffee will be served at 10:15 a.m., 508 Math. - LAST SEMINAR FOR THIS SEMESTER

Applied Mathematics Colloquim: (C.K. Chu), jointly sponsored by the Applied Mathematics Division, Applied Physics Department and the Department of Mathematics
C.C. Chang (National Taiwan University & UC Davis & Berkeley)
"Forces, vorticity and density gradient"
4:30 p.m., 214 S.W. Mudd - LAST SEMINAR FOR THIS SEMESTER

Geometry and Analysis: (M. Kuranishi)
Paul Feehan (Ohio State)
"A generic metrics theorem for PU (2) monopoles"
2:30 p.m., 507 Math. - LAST SEMINAR FOR THIS SEMESTER