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Seminars for the week of April 26, 2010

Colloquium

Thursday, 3:35, in VinH 16

Professor Ching-Li Chai
of University of Pennsylvania
will speak on
"Complex multiplication"

An elliptic curve is said to have complex multiplication if its endomorphism ring is an order of an imaginary quadratic eld. The arithmetic properties of such elliptic curves have been studied since the nineteenth century. Fundamental work of Shimura and Taniyama in the late 1950's to early 1960's extended the CM theory to higher dimension, which has since become a basic tool in arithmetic algebraic tgeometry. The first part of this talk is a survey of the arithmetic and geometric aspects of the theory of complex multiplication. The second part deals with more recent developments, on the CM lifting problem (with B. Conrad and F. Oort) and a conditional answer (with F. Oort) to a question of N. Katz, on the existence of an abelian variety over a number field which is not isogenous to the Jacobian of any smooth curve.

Monday, 26 Apr 2010

Working Seminar on Representations of p-adic Groups: at 1.25 in VinH 311
Professor Dihua Jiang will speak on "L-functions for orthogonal groups -- global theory"
Jr. Colloquium: at 12:20 in VinH 364
Likun Zheng will speak on "Stochastic analysis of pattern formation in drosophila"
Dynamical Systems Seminar: at 3:35 in VinH 570
... Will not meet this week
Applied Mathematics: at 4:45 in VinH 6
Dr. Facundo Memoli from Stanford University will speak on "The Gromov-Wasserstein distance and object matching"

Tuesday, 27 Apr 2010

IMA Postdoc: at 11:15 am in LindH 305
Professor Chiun-Chang Lee from National Taiwan University will speak on "Title: to be announced"
Special Ordway Lecture: at 2:30 in VinH 570
Professor Gus Lehrer from University of Sydney will speak on "3 ways to compute the action of a reflection group on the cohomology of its hyperplane complement"
Topology Seminar: at 3:30 in VinH 301
Professor Andrew Blumberg from University of Texas at Austin will speak on "Title: to be announced"

Wednesday, 28 Apr 2010

Climate Change: at 11:15 in VinH 570
Richard Barnes will speak on "Rapid deglaciation"
Working Seminar on Representations of p-adic Groups: at 1.25 in VinH 311
Mr. Lei Zhang will speak on "Distinguished supercuspidal representations -- a continuation"
Student Seminar on Symplectic Geometry: at 3:30 in VinH 570
... Will not meet this week
PDE: at 3:35 in VinH 207
Professor Congming Li from University of Colorado and IMA will speak on "The integral estimates and the asymptotics of solutions to the weighted HLS systems"
Student Geometric Analysis Seminar: at 4:30 in VinH 206
Guoyi Xu will speak on "Sharp logarithmic Sobolev inequalities on gradient solitons (after Nei Li and Carrillo)"

Thursday, 29 Apr 2010

Mathematical Physics Seminar: at 11:15 in Vincent Hall 570
Li Wei will speak on "Symmetries of differential equations"
Student Combinatorics Seminar: at 11:15 in VinH 203B
... Will not meet this week
Math Club Seminar: at 12:10 in VinH 120
Professor Gilad Lerman will speak on "Mathematics in the Age of High-throughput Data"
Differential Geometry/Symplectic Topology: at 1:25 in VinH 570
Professor Robert Gompf from University of Texas will speak on "Constructing Stein manifolds topologically"
IMA Seminar on Complex Fluids and Complex Flows: at 3:30 in Lind Hall 305
... Will not meet this week
Colloquium: at 3:30 in VinH 16
Professor Ching-Li Chai from University of Pennsylvania will speak on "Complex multiplication"

Friday, 30 Apr 2010

Industrial Problems Seminar: at 1:25 in VinH 570
Professor Anthony Jos\'e Kearsley from National Institute of Standards and Technology will speak on "Optimal chemical spectroscopy"
Lie Theory Seminar: at 1:25 in VinH 311
Mr. Xin Shen will speak on "L-functions for orthogonal groups -- local theory"
Algebraic Representation Theory: at 2:30 in VinH 203B
Professor Peter Webb will speak on "Reflection functors and tilting -- a continuation"
Automorphic Forms and Number Theory: at 2:45 in VinH 364
Professor Paul Garrett will speak on "Trivial-on-average bounds in the general case"
Differential Geometry/Symplectic Topology: at 3:30 in VinH 207
Professor Lei Ni from University of California, San Diego will speak on "Manifolds with pinched flag curvature"
Combinatorics: at 3:35 in VinH 570
Professor Gus Lehrer from University of Sydney will speak on "Hodge numbers of algebraic varieties over number fields"
Probability Seminar: at 3:35 in VinH 213
Sergey Bobkov will speak on "Entropic instability of Cramer's characterization of the normal law"
Practitioners' Financial Mathematics Seminar: at 5:30 in VinH 16
Christopher Sebald, Executive Vice President and Chief Investment Officer from Advantus Capital will speak on "Title: to be announced"

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