MONDAY, MARCH 21

Elementary Methods: (B. Mezhericher)
NO SEMINAR THIS WEEK.

Physics Colloquium:
Andrei Beloborodov (Columbia, Physics)
"Gamma-ray bursts"
4:15 p.m., 428 PUPIN HALL
Coffee served at 3:30 on the 7th floor hall, 705 PUPIN HALL.

Applied Mathematics Colloquium:
Howard Elman (Univ. of Maryland)
"Preconditioning strategies for models of incompressible flow"
2:45 p.m., 214 Mudd

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

COLLOQUIUM: (E. Urban, M.T. Wang)
Dinakar Ramakrishna (Caltech)
"Modular forms and Calabi-Yau varieties"
4:15 p.m., 520 Math.
Tea will be served at 3:45 p.m., 508 Math.

THURSDAY, MARCH 24

Geometric Topology:  (C. Leininger)
Mikhail V. Belolipetsky (Hebrew University, Jerusalem)
"Covolumes of maximal arithmetic subgroups and subgroup growth in semisimple Lie groups"
NOTE TIME and DAY: 3:00 p.m., 507Math.

Geometry and Analysis: (M.T. Wang, M.P. Tsui)
Mohammad Ghomi (Penn State & Georgia Tech)
"Topology of surfaces with connected shades"
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)
Chandrashekhar Khare (University of Utah)
"Serre's conjectures on mod p Galois representations"
Columbia, 312  Math, 5:30-7:00 p.m.,
Tea will be served in the Math Lounge, Room 508, 5:00 p.m.

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

FRIDAY, MARCH 25

Probability: (P. Bank)
Ulrich Haussmann (University of British Columbia, Vancouver)
"A stochastic equilibrium economy with irreversible investment"
11:00 a.m., 520 Math
Coffee and tea will be served at 10:30 a.m., 508 Math.

Geometric Topology:  (C. Leininger)
Ilya Kapovich (Illinois, Urbana-Champaign)
"Geodesic currents on free groups"
1:15 p.m., 507 Math.

TRIPLE HEADER I: Algebraic Geometry:  (M. Thaddeus)
Valentina Kiritchenko (SUNY, Stony Brook)
"Chern classes for reductive groups"
2:00 p.m., 520 Math. 

TRIPLE HEADER II Algebraic Geometry:  (M. Thaddeus)
Samuel Grushevsky (Princeton)
"A_6 is of general type"
3:30 p.m., 520 Math. 

TRIPLE HEADER III: Algebraic Geometry:  (M. Thaddeus)
Damiano Testa (MIT)
"The Severi problem for rational curves on del Pezzo surfaces"
5:00 p.m., 520 Math.