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Seminars for the week of February 28, 2011
Colloquium
Thursday, 2:30 and 3:30, in VinH 16(1) Professors Michael Hutchings and (2) Xiaoqing Li
of (1) University of California, Berkeley
and
(2) SUNY, Buffalo
will speak on
"(1) "Recent progress on symplectic embedding problems in four dimensions"
and
(2) "Subconvexity bounds for L-functions"" Abstract:(1) It is a nontrivial problem to decide whether one
symplectic manifold can be symplectically embedded in another,
even for simple examples such as convex subsets of R4. In
2010, Dusa McDuff established a number-theoretic criterion for
when one four-dimensional symplectic ellipsoid can be
symplectically embedded into another. We will review this result,
and then introduce the general theory of ``ECH capacities''. The
latter give general obstructions to symplectic embeddings in four
dimensions, which turn out to be sharp for ellipsoid embeddings
and a few other cases. However many mysteries remain in this area.
*and*
Abstract:(2) A fundamental problem in number theory is to bound L-functions on
their critical lines. In general, only convexity bounds are known
which are obtained by applying variations of the
Phragmen-Lindeloff interpolation method. Although such bounds are
far from the expectation created by the Riemann hypothesis, they
barely fail to be of use in many applications. Any small power
saving of the convexity bounds, i.e, the so-called subconvexity
bounds, would have significant consequences in applications. These
subconvexity problems have been solved for L-functions on GL(2),
but are largely open for L-functions on higher rank groups. In
this talk, we will explain how some novel techniques lead to our
first subconvexity bounds for some L-functions on GL(3).
Monday, 28 Feb 2011
Math Physics Seminar:
at 11:15 in VinH 570
-
Professor Willard Miller
will speak on "Structure relations for the symmetry algebras of classical superintegrable systems"
Junior Colloquium:
at 12:20 in VinH 570
-
... To be announced
Topology Seminar:
at 3:30 in VinH 364
-
... Will not meet this week
Joint PDE and Dynamical Systems Seminar:
at 3:35 in VinH 570
-
Professor Piotr Mucha
from University of Warsaw
will speak on "Inhomogeneous Navier-Stokes equations in critical functional framework"
Student Seminar in Symplectic Geometry:
at 4:30 in VinH 203B
-
... Will not meet this week
Tuesday, 29 Feb 2011
Student Combinatorics Seminar:
at 11:15 in VinH 570
-
Javier Acosta
will speak on "Face lattices"
IMA Postdoc Seminar:
at 11:15 in LindH 305
-
... Will not meet this week
Differential Geometry/Symplectic Topology:
at 1:30 in VinH 570
-
Jun Li
from Stanford University
will speak on "Title: to be announced"
Student MFM Seminar:
at 2:30 in VinH 570
-
... Will not meet this week
Wednesday, 1 Mar 2011
Climate Change:
at 11:15 in VinH 570
-
... Will not meet this week
Student Seminar in Symplectic Geometry:
at 3:30 in VinH 570
-
... Will not meet this week
PDE Seminar:
at 3:35 in VinH 206
-
Professor Matthias Kurzke
from University of Bonn
will speak on "Vortex motion for the Landau-Lifshitz-Gilbert equation with spin transfer torque"
Arithmetic Applications of p-Adic Cohomology Seminar:
at 3:35 in VinH 570
-
Professor Steve Sperber
will speak on "p-divisibility ... Chevalley, Warning, Ax, Katz"
Applied Mathematics Seminar:
at 4:40 in VinH 570
-
... Will not meet this week
Thursday, 2 Mar 2011
Math Club Seminar:
at 12:10 in VinH 120
-
Yulia Hristova
from IMA
will speak on "Computerized tomography: Seeing the invisible"
Differential Geometry/Symplectic Topology:
at 1:30 in VinH 570
-
... Will not meet this week
Colloquium:
at 2:30 in VinH 16
-
(1) Professors Michael Hutchings and (2) Xiaoqing Li
from University of California, Berkeley and SUNY, Buffalo
will speak on "(1) Recent progress on symplectic embedding problems in four dimensions and (2) Subconvexity bounds for L-functions"
Friday, 3 Mar 2011
Graduate Student Forum Seminar:
at 12:20 in VinH 16
-
... Will not meet this week
Industrial Problems Seminar:
at 1:25 in Keller Hall 3-180
-
Darren Kaltved
from Career Center for Science and Engineering
will speak on "Using LinkedIn to network your way to a job"
Lie Theory Seminar:
at 1:30 in VinH 203B
-
... Will not meet this week
Probability Seminar:
at 2:30 in VinH 213
-
Professor Mikhail Safonov
will speak on "Boundary behavior of diffusion processes in Lipschitz, Holder, and twisted Holder domains"
Combinatorics Seminar:
at 3:35 in VinH 570
-
Professor Peter Webb
will speak on "Sets with a category action"
Automorphic Forms and Number Theory:
at 3:35 in VinH 364
-
Professor Paul Garrett
will speak on "Asymptotics of integral moment weights - a continuation"
Practitioners' Financial Mathematics Seminar:
at 5:30 in VinH 16
-
Professor Sandra Paterlini
will speak on "Estimation and effects of dependencies in operational risk modeling"
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