TUESDAY, FEBRUARY 17
THURSDAY, 
FEBRUARY 19
Geometry and Analysis: 
(Z. 
Hou, O.
Savin)
Maria-Cristina Caputo (UT Austin)
"Global 
regularity for reaction-diffusion systems"
4:30 p.m., 507 Math.
Joint COLUMBIA-CUNY-NYU 
(Rotating among the 3 Universities)
RTG  Seminar: 4:00-4:45
Number Theory (D. Goldfeld, V. Kolyvagin, Y. Tschinkel,  A. Venkatesh, S. 
Zhang,  L. Szpiro)
Hee Oh 
(Brown)
Title: TBA
Columbia University,  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)
Rick Klotz, (Greenwich 
Capital)
"U.S. Fixed Income Markets (cont)"
7:40-9:00 p.m., 207 Math.
FRIDAY,  
FEBRUARY 20
Samuel Eilenberg Lectures:
Andrei 
Okounkov (Princeton)
“Random surfaces and algebraic curve"
9:30 a.m., 520 Math. Coffee and Tea will be served 
at 9:00 a.m. 508 Math.
Probability: 
(J. Dubedat, I. Karatzas, R. 
Neel, E. Schertzer)
Amarjit 
Budhiraja (UNC, Statistics)
"Elliott-Kalton stochastic differential games associated with the infinity 
Laplacian"
12:00 
noon, 
903 SSW Bldg 
(1255 
Amsterdam Avenue-btwn. 121st & 122nd Street)
Room 903, 10th Floor in the School 
of Social Work
Joint with 
Geometric Topology 
Symplectic Geometry and Gauge 
Theory:
(M. Khovanov, D. McDuff, P. Ozsváth, R. Lipshitz)
Mikhail Gromov (Courant and IHÉS)
Title: TBA
1:10 p.m., 520 Math.
Algebraic Geometry: 
(J. de Jong, M. Thaddeus)
Anthony Licata 
(Stanford)
Title: TBA
2:10 p.m., 417 Math.
Geometric Topology: 
(D. 
Thurston)
Dieter Kotschick (Munich 
and 
IAS)
Title: TBA
2:30 p.m., 520 Math.
Columbia Informal 
Symplectic Geometry Seminar:
(M. Khovanov, D. McDuff, P. Ozsváth, R. Lipshitz)
No seminar this week: go to the 
discrete math seminar 
instead.
Columbia Discrete Math Seminar: 
(D. Bayer, M. Chudnovsky)
Satyan 
Devadoss  (Willians College)
Title; TBA
NOTE SPECIAL DAY, TIME AND 
LOCATION: 3:45 p.m., 520 Math.
The location of the seminar will usually alternate between 303 Mudd and 507 Math.