MONDAY, APRIL 26

Special Seminar:  (S.W. Zhang)
Michael Harris (Université Paris VII & Columbia)
"Jacquet's conjecture on the triple product $L$-function"
4:00 p.m., 507 Math.

Special Geometric Topology:  (J. Birman, W. Neumann, I. Kofman)
Alan Reid  (UT Austin)
"Extensions, retractions and LERF"
4:00 p.m., 405 Math.

Physics Colloquium:
Larry Abbott (Brandeis)
"Scale invariant dynamics in neural systems"
4:15 p.m., 428 PUPIN HALL
Coffee served at 3:30 near the entrance to the lecture hall on the 4th floor Pupin Hall.

Applied Mathematics Colloquium:
Christos Floudas (Princeton)
"Computational studies of pathways in yeast using global gene expression data:
Network topology and model uncertainty"
2:45-3:45 p.m., 214 Mudd

Mathematics of Finance Practitioners Seminar: (M. Smirnov)
Mikhail Smirnov
Title: TBA
7:40-9:00 p.m., 207 Math.

WEDNESDAY, APRIL 28

COLLOQUIUM: (P.  Daskalopoulos)
Tetsuji Shioda (Rikkyo University)
"Integral points, abc and elliptic surfaces"
4:15 p.m., 520 Math. Tea will be served at 3:45 p.m., 508 Math.

Applied Mathematics Colloquium:
Stanley Osher (UCLA
"Using geometry and iterated refinement for inverse problems. (1) Total variation image restoration"
NOTE: 11:00 a.m., 410 International Affairs Building

Samuel Eilenberg Lectures:
Robert Bryant (Duke & Columbia)
Exterior Differential Systems in Geometry
"Calibrations and special Lagrangian geometry"
2:40- 4:00 p.m., 507 Math.

Geometry and Analysis: (H. Bray, M.T. Wang)
Simon Brendle (Princeton)
"The concentration-compactness principle and the Yamabe flow in conformal geometry"
4:30 p.m., 507 Math

Joint COLUMBIA-CUNY-NYU (Rotating among the 3 Universities)
Number Theory (D. Goldfeld, V. Kolyvagin, P. Sarnak,  L. Szpiro)
Andrew Pollington (Brigham Young & NSF)
"Some singular measures applied to problems in number theory and the distribution of sequences"
NYU, Courant Institute 13th Floor, 5:30-7:00 p.m.,  Tea will be served at 5:00 p.m.,

Mathematics of Finance Practitioners Seminar: (M. Smirnov)
Student Project Presentations
7:40-9:00 p.m., 207 Math.

Probability: (J. Vecer)
Ronnie Sircar
"Optimal investment with derivatives"
11:00-12:15 p.m., 520 Math.
Tea and Coffee will be served at 10:30 a.m., 621 Math.

Double Header I: Geometric Topology:  (J. Birman, W. Neumann, I. Kofman)
Stanislav Jabuka
"Heegaard Floer homology of certain mapping tori"
11:00 a.m., 507 Math.

Double Header II: Geometric Topology:  (J. Birman, W. Neumann, I. Kofman)
Alexei Miasnikov  (CUNY)
"Random van Kampen diagrams and algortihmic problems in groups"
1:15 p.m., 507 Math.

ISCAP: (B. Greene, T. Baltz)
Amber Miller (Physics, Columbia)
"QUIET"
2:00 p.m., 908 PUPIN HALL.

Ellis R. Kolchin Memorial Lectures:
Vladimir Voevodsky (Institute for Advanced Studies)
"The history of a branching process: A case study in applied mathematics"
4:30 p.m., 312 Math., Tea will be served at 3:45 p.m., 508 Math.