Week of April 27, 2009

Monday

• Physics Colloquium:
  Marusa Bradac (University of California, Santa Barbara)
  "Dark Matter in the "Bullet Cluster" 1E0657-56 and MACSJ0025-1222: Revealing the Invisible with 2 Cosmic Supercolliders"
  4:15 p.m., 428 Pupin Hall

Tuesday

• Applied Mathematics Colloquium: (D. Keyes)
  J. Nathan Kutz, University of Washington
  "Models for High-Power Pulsed Lasers"
  2:45 p.m., 214 Mudd 
• Discrete Math
  Sanjeev Arora (Princeton)
  "Semidefinite Programming and Approximation Algorithms: A Survey of Recent Results"
  5:30 p.m., 303 Mudd
• Mathematics of Finance Practitioners Seminar: (M. Smirnov)
  Student Project Presentations
  7:40-9 p.m., 207 Math

Wednesday

• Math Colloquium: (Panagiota Daskalopoulos, Eric Urban, and Mu-Tao Wang)
  Horng-Tzer Yau (Harvard)
  "Dyson's Sine Kernel, Wigner Random Matrices, and Interacting Particle Systems"
  5 p.m., 312 Math. Tea will be served at 4:30 p.m. in 508 Math.

Thursday

• Geometry and Analysis: (Z. Hou, O. Savin)
  Cristian Gutierrez (Temple)
  "A Near Field Refraction Problem in Geometric Optics"
  4:30 p.m., 507 Math
• Joint COLUMBIA-CUNY-NYU (Rotating among the 3 Universities)
  Number Theory (D. Goldfeld, V. Kolyvagin, Y. Tschinkel, A. Venkatesh, S. Zhang, L. Szpiro)
  Umberto Zannier (Scuola Normale Superiore di Pisa)
  "Hilbert Irreducibility Above Algebraic Groups"
  4 p.m., CUNY Graduate Center, Room C415. Tea will be served in C415, C-level, one floor down from lobby.
• Mathematics of Finance Practitioners Seminar: (M. Smirnov)
  Student Project Presentations
  7:40-9 p.m., 207 Math

Friday

• Samuel Eilenberg Lectures
  Andrei Okounkov (Princeton)
  "Random Surfaces and Algebraic Curves"
  9:30 a.m., 520 Math
  Coffee and tea will be served at 9 a.m. in 507 Math
• Probability: (J. Dubedat, I. Karatzas, R. Neel, E. Schertzer)
  Columbia-Princeton Probability Day
• Symplectic Geometry and Gauge Theory (M. Khovanov, D. McDuff, P. Ozsváth, T. Perutz, R. Lipshitz)
  NY Joint Symplectic Geometry Seminar
  Eric Zaslow (Northwestern)
  "T-Duality and the Coherent-Constructible Correspondence"
  1:10 p.m., 520 Math
• Geometric Topology: (D. Thurston)
  No seminar this week.  Go to NY Joint Symplectic Geometry Seminar
  2:30 p.m., 520 Math
• Algebraic Geometry: (J. de Jong, M. Thaddeus)
  Sabin Cautis (MSRI)
  Title: TBA
  2:10 p.m., 417 Math
• Symplectic Geometry and Gauge Theory (M. Khovanov, D. McDuff, P. Ozsváth, T. Perutz, R. Lipshitz)
  NY Joint Symplectic Geometry Seminar
  Claude LeBrun (SUNY Stony Brook)
  "Einstein Metrics, Complex Surfaces, and Symplectic 4-Manifolds"
  3:45 p.m., 520 Math