University of Minnesota
Mathematics

Mathematics Seminars for the week of February 23, 2004


Colloquium

Thursday, 3:30, in VinH 16

Professor Hillel Furstenberg
of Hebrew University, Jerusalem
will speak on
"Ergodic geometry and the role of nilpotent gorups and nilmanifolds"

We will describe the basic ideas underlying the recent work of B. Host and B. Kra in which they were able to establish a very general non- conventional ergodic theorem. ``Ergodic Geometry'' enables one to isolate ``geometrically meaningful'' objects in the context of ergodic (rather than transitive) group actions, and the rudimentary study of these leads to a ``completion'' of the acting group. The fact that this completion is nilpotent for certain cases will play a crucial rule.

Monday, 23 Feb 2004

Special Seminar: at 1:25 in VinH 570
Professor Vin de Silva from Stanford University will speak on "Low-dimensional structure in high-dimensional data"
Commutative Algebra/Algebraic Geometry: at 3:30 in VinH 6
... Will not meet this week ...
Singular Integrals (Intro): at 3:35 in VinH 113
Professor Max Jodeit will speak on "The Calderon-Zygmund decomposition and pointwise convergence of singular integrals"
Dynamical Systems Seminar: at 3:35 in VinH 570
Professor Yingfei Yi from Georgia Tech will speak on "Mechanism of destruction of resonant tori in Hamiltonian systems"
Joint PDE and Real Analysis [Gene Fabes 1937--1997]: at 4:30 in VinH 113
Professor Xuefeng Wang from Tulane University will speak on "Stability and metastability of patterns in a nonlocal model for phase transitions"

Tuesday, 24 Feb 2004

IMA Postdoc Seminar: at 11:15 in LinH 409
... Will not meet this week
Student Topology: at 11:15 in VinH 203B
Mr. Fei Xu will speak on "Cohomology of small categories - a continuation"
Applied Mathematics and Numerical Analysis: at 11:15 in VinH 570
Professor Lee DeVille from Rensellaer Polytechnic Institute will speak on "Approximating the dynamics of thin elastic media using rigorous multiscale asymptotics"
Joint IMA Postdoc and Random Matrix Seminar: at 12:45 in VinH 570
Professor Tim Garoni from IMA will speak on "Absolute moments of GUE characteristic polynomials, and impenetrable bosons - II"
Topology: at 1:25 in FordH 170
Professor Bernard Badzioch will speak on "2-Categories - a continuation"
Number Theory: at 1:25 in VinH 1
Professor Ralf Schmidt will speak on "Arthur parameters for some real groups - a continuation"
Jr. Colloquium: at 3:35 in VinH 16
Dr. Hillel Furstenberg from Hebrews University, Jerusalem will speak on "Patterns in the stars, recurrence in dynamical systems, and the combinatorial background for non-conventional ergodic theorems"
Student Combinatorics Seminar: at 4:40 in VinH 16
Ms. Muge Taskin will speak on "Hopf algebras and combinatorics, Part I"

Wednesday, 25 Feb 2004

Brown Bag Seminar: at 12:00 in LindH 409
... Will not meet this week ...
Mathematical Physics: at 1:25 in VinH 203A
Professor Juha Pohjanpelto from Oregon State University will speak on "Symmetries, conservation laws, and variational principles for differential equations"
Special Ordway Lecture: at 3:30 in VinH 16
Professor Hillel Furstenberg from Hebrew University, Jerusalem will speak on "Ergodicity, mixing and the long-term memory of dynamical systems"
P.D.E.: at 3:35 in VinH 113
... Will not meet this week ... ... Will meet joint with Real Analysis on Monday this week

Thursday, 26 Feb 2004

Lie Theory: at 1:25 in VinH 301
Professor Dihua Jiang will speak on "The recent progress on the Gross-Prasad Conjecture - a continuation"
Complex Systems Seminar: at 1:30 in LindH 409
Professor Jacek Wesolowski from Warsaw Technical University will speak on "Conditional moments of q-meixner processes"
Differential Geometry and Geometric Analysis: at 2:20 in VinH 570
... Will not meet this week ...
Colloquium: at 3:35 in VinH 16
Professor Hillel Furstenberg from Hebrew University, Jerusalem will speak on "Ergodic geometry and the role of nilpotent groups and nilmanifolds"

Friday, 27 Feb 2004

Industrial Problems Seminar: at 1:25 in VinH 570
Dr. Darek Madej from Symbol Technologies will speak on "Matching wavelets to signals"
Probability: at 2:30 in VinH 206
Professor Julien Bremont from ENS - Cachan will speak on "Random walks in random medium and Lyapunov spectrum"
Combinatorics: at 3:35 in VinH 311
Professor Vic Reiner will speak on "Catalan objects for Weyl and Coxeter groups"
Automorphic Forms and L-Functions: at 3:35 in VinH 364
Professor Paul Garrett will speak on "Constructing some discrete series representations - a continuation"
Symplectic Topology and Symplectic Geometry: at 3:35 in VinH 207
Professor Ezra Miller will speak on "Gelfand-Tsetlin patterns by toric degeneration of flag manifolds"

Professor Juha Pohjanpelto, Oregon State University, will be visiting the School of Mathematics FEbruary 18-27, 2004. HIs visit is sponsored by the Visitors Program. During his visit, Professor Pohjanpelto's office will be Vincent Hall 270a; you can reach him by phone at 624- 8325.

Professor Hillel Furstenberg, Hebrew University, Jerusalem, will visit the School of Mathematics February 22-28, 2004. His visit is sponsored by the Ordway Endowment. Professor Furstenberg's office will be Vincen tHall 109a; you can reach him by phone at 625-6398.


www@math.umn.edu
Updated Fri Feb 20 03:00:01 CST 2004
URL http://www.math.umn.edu/~seminar
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