Applied Mathematics Colloquium:
No Seminar this week.

Columbia Discrete Math Seminar:  (D. Bayer, M. Chudnovsky)
Xander Faber
"Foster coefficients and the Jacobian of a metric graph"
4:00 p.m., 622 Math.
The location of the seminar will alternate between 317 Mudd and 622 Math.

Mathematics of Finance Practitioners Seminar: (M. Smirnov)
Mikhail Smirnov
"Projects question and answers session"
7:40-9:00 p.m., 207 Math.

Special Mathematical Finance Seminar:
Alexander Schied (Cornell)
"Optimal liquidation of large portfolios"
1:10-2:25 p.m.,  Room 1025, 10th Floor in the School of Social Work

Geometry and Analysis: (Z. Hou, N. Sesum)
NO SEMINAR THIS WEEK.

Joint COLUMBIA-CUNY-NYU (Rotating among the 3 Universities)
Number Theory (D. Goldfeld, V. Kolyvagin,  L. Szpiro, Y. Tschinkel,  A. Venkatesh,  S. Zhang)
Matt Papanikolas (Texas, A&M)
"Frobenius difference equations and transcendence"
5:30-7:00 p.m., CUNY Graduate Center, Tea will be from 5:00-5:30 served in Room C415. C-level: one floor down from lobby.

Mathematics of Finance Practitioners Seminar: (M. Smirnov)
Darren Clipston (Tallis Capital)
"Long/Short equity portfolio management"
7:40-9:00 p.m., 207 Math.

Probability: (I. Karatzas)
Gerardo Hernandez (Columbia, Statistics)
"On Schreodinger's equation, 3-dimensional Bessel bridges, and passage time problems"
11:00 a.m., 903 SSW Bldg (1255 Amsterdam Avenue-btwn. 121st & 122nd Street)
Room 903, 9th Floor in the School of Social Work
Coffee and tea will be served at 10:30 a.m., Statistics Departmental Lounge on the 10th floor of that building.

Symplectic Geometry and Gauge Theory: (C. Manolescu, D. McDuff, M. Khovanov, P.S. Ozsváth, R. Lipshitz)
"Local Gromov--Witten invariants of Spin curve"
4:00 p.m.: Junho Lee (U. Central Florida)
"Rigidity of monotone Lagrangians"
5:15 p.m.: Octav Cornea (U. Montréal)
NOTE: SUNY Stony Brook (Tea at 3:30 in the 4th floor common room.)

Samuel Eilenberg Lectures:
Michael Harris (Columbia & ) Universite Paris 7)
“Arithmetic Automorphic Forms on Unitary Groups and Related Galois Representatives"
1:00 p.m., 207 Math.
Tea will be served at 3:00 p.m., 508 Math.

Joint Number Theory Workshop: (D. Goldfeld, E. Urban)
Erez Lapid (Hebrew University)
"Arthur's trace formula - old and new"
11:00 a.m. -12:00 noon., 203 Math.

Geometric Topology:  (D. Thurston)
Christian Zickert
"The volume and Chern-Simons invariant of a hyperbolic manifold"
2:15 p.m., 507 Math.

Algebraic Geometry: (J. de Jong, M. Thaddeus)
Hiraku Nakajima  (Kyoto/IAS)
"Perverse coherent sheaves on blowup surfaces"
2:15 p.m., 417 Math.