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Seminars for the week of September 26, 2005
Colloquium
Thursday, 3:30, in VinH 16Professor Assaf Naor
of Microsoft
will speak on
"The Lipschitz extension problem"
The Lipschitz extension problem asks for conditions on a pair of metric spaces X,Y such that every Y-valued Lipschitz map on a subset of X can be extended to all of X with only a bounded multiplicative loss in the Lipschitz constant. This problem dates back to the work of Kirszbraun and Whitney in the 1930s, and has been extensively investigated in the past two decades. The methods used in this direction are based on geometric, analytic and probabilistic arguments. In particular, the methods involve stable processes, random projections, random partitions of unity and the analysis of Markov chains in metric spaces. In this talk we will present the main known results on the Lipschitz extension problem, as well as several recent breakthroughs.
Monday, 26 Sep 2005
- Mr. Robert Edman will speak on "Sheaves and presheaves"
- ... Professor Bert Fristedt will talk for 10 minutes on nim with an infinite ordinal number of sticks in a pile -- finishing up the impartial games story that was started on September 12. Then Mike Weimerskirch will talk for 40 minutes on a new topic, starting essentially from scratch -- namely, partizan games that can be represented as numbers. Those interested in starting with Mike Wiemerskirch's material should feel free to walk in slightly after 12:20 or, alternatively, come at 12:20 sharp and look bored for a few minutes.
- Professor Nicolai Krylov will speak on "Unexpected Behavior of nonautonomous linear dynamical systems in two dimensions"
- ... Will not meet this week
-
Student Number Theory:
at 12:20 in VinH 203B
-
Full-Information Games; a learning seminar:
at 12:20 in VinH 570
-
Dynamical Systems Seminar:
at 3:35 in VinH 570
-
Real Analysis:
at 3:35 in VinH 301
Tuesday, 27 Sep 2005
- Jung-Ha Au will speak on "A variational PDE based level set method for a simultaneous segmentation and non-rigid registration"
- ... Will not meet this week.
- Professor Bennett Chow from UC-San Diego will speak on "Singularities in Ricci flow - a continuation"
- Joe Kenney will speak on "A few proofs of irrational numbers"
-
IMA Postdoc Seminar:
at 11:15 in LindH 409
-
Math Physics:
at 1:25 in VinH 570
-
Ordway Lecture:
at 1:25 in VinH 570
-
Jr. Colloquium:
at 3:35 in VinH 16
Wednesday, 28 Sep 2005
- Professor Daniel Coutand from UC - Davis will speak on "Title: to be announced"
- Ms. C.-F. Nien will speak on "Models of representations of p-adic groups - a continuation"
-
PDE:
at 3:35 in 570 VinH
-
Working Seminar on p-adic Groups:
at 3:40 in VinH 301
Thursday, 29 Sep 2005
- ... Will not meet this week
- Professor Jackie Shen will speak on "A stochastic-variational model for soft Mumford-Shah segmentation"
- Mr. Ryan Gantner will speak on "Title: to be announced"
- Professor Ben Chow, Ordway Lecturer from UC San Diego will speak on "Singularities in Ricci flow"
- Professor Craig Huneke from University of Kansas will speak on "Uniform Frobenius closures and local cohomology"
- Professor Assaf Naor from Microsoft will speak on "The Lipschitz extension problem"
-
Topology:
at 11:15 in VinH 203A
-
Applied Math and Numerical Analysis:
at 11:15 in VinH 570
-
Student Probability:
at 12:20 in VinH 203A
-
Differential Geometry and Symplectic Topology:
at 1:25 in VinH 570
-
Algebraic Geometry:
at 2:20 in VinH 16
-
Colloquium:
at 3:30 in VinH 16
Friday, 30 Sep 2005
- Professor Assaf Naor from Microsoft will speak on "Graph Partitioning, Clustering with Qualitative Information, and Grothendieck-type Inequalities"
- Mr. Mike Weimerskirch from will speak on "Ordinal numbers and combinatorial games"
- Professor David Bressoud from Macalester College will speak on "Exploiting symmetries: alternating sign matrices and the Weyl character formulas"
- Professor Maury Bramson from will speak on "Stability of networks for max-min fair routing"
- Professor Paul Garrett will speak on "Variations on the Stone von Neumann theorem"
-
Industrial Problems Seminar:
at 1:25 in VinH 570
-
Student Combinatorics:
at 1:25 in VinH 203A
-
Combinatorics:
at 3:35 in VinH 570
-
Probability:
at 3:35 in VinH 206
-
Automorphic Forms and Number Theory:
at 4:40 in VinH 207
Professor Bennett Chow, University of California, San Diego is currently visiting the School of Mathematics for one month beginning 9/4/05. Professor Chow's visit is made possible through the Ordway Endowment. His office is Vincent Hall 352; you can reach him by phone at 625-7396. Professor Craig Huneke from the University of Kansas, Lawrence will visit the Mathematics Department for two weeks beginning September 21, 2005. His visit is made possible by the Ordway Endowment. Professor Huneke will return during Spring semester for an additional two week visit. During his stay, his office will be Vincent Hall 355; you can reach him by phone at 624-5224.
