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Seminars for the week of April 2, 2007

Colloquium

Thursday, 3:20, in VinH 16

Professor Ken Bromberg
of University of Utah
will speak on
"The geometry of hyperbolic 3-manifolds"

The aim of this talk is to give a coarse description of the geometry of a hyperbolic 3-manifold homotopy equivalent to a surface. We will begin by addressing the same problem for a hyperbolic surface. For a surface we will see that every compact hyperbolic surface can roughly be built from ideal hyperbolic triangles with the building instructions coming from a combinatorial object, a pants decomposition of the surface. Suprisingly, a similar procedure works when we move to dimension three. Here we will see that a hyperbolic 3-manifold homotopy equivalent to a surface can be built from regular ideal octahedrons with the building instructions coming from a path in the pants complex of the underlying surface. This way of describing a hyperbolic 3-manifold is due to Minsky. The fact that all hyperbolic 3-manifolds homotopy equivalent to a surface can arise this way follows from the Brock-Canary-Minsky proof of the Ending Lamination Conjecture. If time permits we will outline another approach to this conjecture (joint with Brock, Evans and Souto) using hyperbolic cone- manifolds.

Monday, 2 Apr 2007

Special Seminar: at 11:15 in LindH 409
... Will not meet this week
Dynamical Systems Seminar: at 3:35 in VinH 570
Professor Arnd Scheel will speak on "Hopf bifurcation from viscous shock profiles"
Student Lie Groups Seminar: at 3:35 in VinH 213
Mr. Andrew Berget will speak on "Representations of GL(n) via Schur functors"
Real Analysis: at 4:30 in VinH 206
... Will not meet this week

Tuesday, 3 Apr 2007

IMA Postdoc Seminar: at 11:15 in Lind Hall 215
Ms Josephine Yu from University of California will speak on "Tropical implicitization and elimination"
Algebra, Topology, and Physics: at 1:20 in VinH 301
Mr. Javier Zuniga will speak on "Compactifications of moduli space"
Student Algebraic Geometry, Geometry and Topology: at 1:25 in 570 VinH
... Will not meet this week
Jr. Colloquium: at 3:20 in VinH 16
Mr. Walter Rusin will speak on "Honey, water, air. What's the difference?"
Student Seminar on Differential Equations: at 5:00 in VinH 203B
Jeonghun Lee will speak on "Littlewood-Paley theory: Sobolev spaces"

Wednesday, 4 Apr 2007

Algebraic Geometry and Applications: at 11:15 in EE/CS 3-180
... Speaker and title to be announced
Student Automorphic Forms: at 3:35 in VinH 213
Mr. Ben Rosenfield will speak on "Integral moments of L-functions"
PDE: at 3:35 in VinH 570
Luan Hoang will speak on "The normal form of the Navier-Stokes equations in suitable normed spaces"
Financial Mathematics: at 6:30 in VinH 570
Professor Carlos Tolmasky from Cargill will speak on "Principal component analysis in term structure modeling. (This is a special practitioner lecture, at a special time and location).\hfill]break Abstract at:http://www.math.umn.edu/~adams/Financial/Materials/abstrY07M04D04.html"

Thursday, 5 Apr 2007

Special Seminar: at 9:45 in LindH 409
... Will not meet this week
Applied Mathematics and Numerical Analysis: at 11:15 in VinH 570
... Will not meet this week
Weekly Tutorial: Real Algebraic Geometry: at 11:15 in LindH 409
Kenneth R. Driessel from Iowa State University will speak on "Title to be announced"
Algebraic Representation Theory: at 1:25 in VinH 206
Professor Peter Webb will speak on "Highest weight categories and rational Cherednik algebras - a continuation"
Differential Geometry/Symplectic Topology: at 1:25 in VinH 570
Professor Ken Bromberg from University of Utah will speak on "Deformations of hyperbolic cone manifolds"
Colloquium: at 3:20 in VinH 16
Professor Ken Bromberg from University of Utah will speak on "The geometry of hyperbolic 3-manifolds"
Informal Mathematical Biology: at 5:30 in VinH 570
... Will not meet this week

Friday, 6 Apr 2007

Industrial Problems Seminar: at 1:25 in VinH 1
... Will not meet this week
Student Combinatorics: at 2:30 in VinH 570
Ning Jia will speak on "Two descriptions of Schubert polynomials"
Combinatorics: at 3:35 in VinH 570
Professor Frank Sottile from Texas A&M University will speak on "The Horn recursion in the Schubert calculus"
Probability: at 3:35 in VinH 206
Professor Richard Sowers from University of Illinois will speak on "A propagation-of-chaos type result in stochastic averaging"
Automorphic Forms and Number Theory: at 3:35 in VinH 364
Professor Shouwu Zhang from Columbia will speak on "Gross-Schoen cycles, triple L-series, and effective Mordell"

Professor John Mallet-Paret from Brown University will be visiting for one month beginning April 1, 2007. His visit is made possible by the Ordway Endowment. During his stay, Professor Mallet-Paret's office will be VinH 109A; you can reach him by phone at 625-6398.

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math.umn.edu/~seminar/2007_April_2.html
Last Modified July 13, 2007
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