COLUMBIA UNIVERSITY - Department of Mathematics

Number Theory: (D. Goldfeld, H. Jacquet, S.W. Zhang)
Jiu-Jang Yu (Princeton)
"Descent maps in Bruhat-Tits theory and applications"
5:30 p.m., 507 Math. Tea will be served at 5:00 p.m., 508 Math.

New York Seminar on Geometry and Physics: (B. Greene)
Calin Lazaroiu (Physics, Columbia)
"D-branes and their associated impact on our understanding of quantum geometry: Part IV"
11:00 a.m., 705 Pupin.

Applied Mathematics Colloquim: (C.K. Chu), jointly sponsored by the Applied Mathematics Division, Applied Physics Department and the Department of Mathematics
Steve Garner (GFDL & Princeton)
"The structure of normal modes and optimal modes in surface geostrophic models"
4:30 p.m., 214 S.W. Mudd.

Geometry and Analysis: (M. Kuranishi, D.H. Phong)
Walter Strauss (Brown)
"Stability and instability in physical plasmas"
2:30 p.m., 507 Math.

Working Seminar - Trees and Related Topics: (N. Benakli, Y. Glasner, S. Mokhtari-Sharghi)
SPEAKER: TBA
"Trees and SL2 Part I" - continuation
6:30 p.m., 507 Math.

Probability: (I. Karatzas)
Serge Levendorskii (Rostov-on-Don, Russia)
"On rational option pricing for a family of non-Gaussian processes"
11:00 a.m., 520 Math.

Algebraic Geometry: (R. Friedman)
Lev Borisov
"Calabi-Yau hypersurfaces in toric varieties"
1:10 p.m., 405 Math.

Geometric Topology: (J. Birman, B. Mangum)
Hessam Hamidi-Tehrani (Santa Barbara)
"Groups generated by Dehn twists"
1:15 p.m., 507 Math.

Working Seminar-Syzygies and Geometry: (D. Bayer, H. Pinkham, S. Popescu)
SPEAKER: TBA
TITLE: TBA
3:00 p.m., 507 Math.