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Seminars for the week of February 22, 2010
Colloquium
Thursday, 3:30, in VinH 16Professor Tullia Dymarz
of Yale University
will speak on
"Bilipschitz equivalence is not equivalent to quasi-isometric equivalence for finitely generated groups"
In geometric group theory we are interested in studying finitely generated groups as geometric objects. A finitely generated group can be considered as a metric space when endowed with a `word metric'. This word metric depends on the choice of generating set but all such metrics are bilipschitz equivalent. Usually, however, finitely generated groups are studied up to `quasi-isometry'. This is a coarse version of bilipschitz equivalence that allows one to study these groups by studying proper geodesic metric spaces on which they act. I will give examples that show that these two notions are not equivalent. The proof will give a flavor of some of the varied techniques and theorems currently used to study the geometry of finitely generated groups.
Monday, 22 Feb 2010
- Professor Dihua Jiang will speak on "L-functions for orthogonal groups -- global theory - a continuation"
- ... Will not meet this week
- Professor Tyler Lawson will speak on "Orientations and twistings of cohomology theories"
- ... Will not meet this week
- ... Will not meet this week
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Working Seminar on Representations of p-adic Groups:
at 1.25 in VinH 311
-
Jr. Colloquium:
at 12:20 in VinH 364
-
Topology Seminar:
at 3:30 in VinH 311
-
Dynamical Systems Seminar:
at 3:35 in VinH 570
-
Applied Mathematics:
at 4:45 in VinH 6
Tuesday, 23 Feb 2010
- ... Will not meet this week
- ... Will not meet this week
-
IMA Postdoc:
at 11:15 am in LindH 305
-
Differential Geometry/Symplectic Topology:
at 1:25 in VinH 570
Wednesday, 24 Feb 2010
- Esther Widiasih will speak on "A tip of the iceberg: A report on a simple model with bifurcation phenomena in the Arctic sea ice"
- Professor Yannan Qiu from Columbia University will speak on "Local and global invariant functionals"
- Mr. Chong-I Ho will speak on "Stable maps"
- Professor Hongjie Dong from Brown University will speak on "Gradient estimates for parabolic and elliptic systems with partially Dini coefficients"
- ... Will not meet this week
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Climate Change:
at 11:15 in VinH 570
-
Working Seminar on Representations of p-adic Groups:
at 1.25 in VinH 311
-
Student Seminar on Symplectic Geometry:
at 3:30 in VinH 570
-
PDE:
at 4:30 in VinH 207
-
Student Geometric Analysis Seminar:
at 4:30 in VinH 206
Thursday, 25 Feb 2010
- Professor Peter Olver will speak on "Joint invariant signatures and histograms - a continuation"
- Jia Huang will speak on "Absolute order and noncrossing partitions"
- Professor Larry Gray will speak on "Actuarial Mathematics"
- ... Will not meet this week
- Professors Charlie Doering and Jean-Luc Thiffeault from Univ. of Michigan/Univ. of Wisconsin will speak on "Tag team tutorials: transport and mixing in incompressible fluid flows"
- Professor Tullia Dymarz from Yale University will speak on "Bilipschitz equivalence is not equivalent to quasi-isometric equivalence for finitely generated groups"
-
Mathematical Physics Seminar:
at 11:15 in Vincent Hall 570
-
Student Combinatorics Seminar:
at 11:15 in VinH 203B
-
Math Club Seminar:
at 12:10 in VinH 120
-
Differential Geometry/Symplectic Topology:
at 1:25 in VinH 570
-
IMA Seminar on Complex Fluids and Complex Flows:
at 3:30 in Lind Hall 305
-
Colloquium:
at 3:30 in VinH 16
Friday, 26 Feb 2010
- ... Will not meet this week
- Mr. Xin Shen will speak on "L-functions for orthogonal groups -- local theory - a continuation"
- ... Will not meet this week
- Professor Adrian Diaconu will speak on "Character sums"
- Kevin Dilks will speak on "Affine descents and the Steinberg torus"
- Professor Claude Lebris from ENPC will speak on "Stochastic homogenization: some recent theoretical and numerical contributions"
- ... Will not meet this week
-
Industrial Problems Seminar:
at 1:25 in VinH 570
-
Lie Theory Seminar:
at 1:25 in VinH 311
-
Algebraic Representation Theory:
at 2:30 in VinH 203B
-
Automorphic Forms and Number Theory:
at 2:45 in VinH 364
-
Combinatorics:
at 3:35 in VinH 570
-
Probability Seminar:
at 3:35 in VinH 213
-
Practitioners' Financial Mathematics Seminar:
at 5:30 in VinH 16
