MONDAY, FEBRUARY 20

Physics Colloquium:
Lawrence Krauss (Case Western Reserve)
“Life, the universe, and nothing:  Life and death in an ever-expanding  universe”
4:15 p.m., 428 PUPIN HALL
Coffee served at 3:30 on the 7th floor hall, 705 PUPIN HALL.

Informal Geometry/Topology: (C. Manolescu, M. Khovanov, P.S. Ozsváth)
NO SEMINAR THIS WEEK.

Mathematics of Finance Practitioners Seminar: (M. Smirnov)
Rick Klotz (Greenwich Capital)
"U.S. fixed income markets (Continued)"
7:40-9:00 p.m., 207 Math.

SPECIAL Geometry/Analysis Seminar: (S. Paul)
Alice Chang (Princeton)
"Conformal invariants associated with a measure"
NOTE SPECIAL DAY, TIME AND LOCATION: 5:00 p.m., 520 Math.

THURSDAY, FEBRUARY 23

Geometry/Analysis Seminar: (S. Paul)
Luis Silvestre (Courant)
"Obtaining the fractional Laplacian from a local PDE"
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)
Alex Gamburd (IAS and UCSC)
"Sum-product estimates, expanders, and equidistribution"
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)
Rick Klotz (Greenwich Capital)
"U.S. fixed income markets (Continued)"
7:40-9:00 p.m., 207 Math.

FRIDAY, FEBRUARY 24

Probability: (I. Karatzas, P. Bank)
Vicky Henderson (Princeton)
"Explaining exercise patterns for executive stock options"
11:00 a.m., Statistics Department is on 1255 Amsterdam Avenue, School of Social Work Building
Seminars will be in Room 305.
Coffee and tea will be served at 10:30 a.m., 10th floor, Statistics Lounge.

Gauge Theory/Symplectic geometry: (P.S. Ozsváth)
Ciprian Manolescu
"Link homology theories from symplectic geometry"
NOTE SPECIAL TIME: 11:00 a.m., 507 Math.

DOUBLE HEADER l: Geometric Topology:  (P.J. Lamberson, K. Kawamuro)
Joseph Maher (Université du Québec ŕ Montréal)
"Random walks on mapping class groups"
1:00 p.m., 507 Math.

DOUBLE HEADER Il: Geometric Topology:  (P.J. Lamberson, K. Kawamuro)
Lee Mosher (Rutgers)
"Axes in outer space"
NOTE SPECIAL TIME: 2:30 p.m., 507 Math.

Algebraic Geometry: (R. Friedman, J. Ross)
Alexander Braverman (Brown)
"Geometric Langlands philosophy and instanton counting"
2:30 p.m., 520 Math.