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Seminars for the week of February 26, 2007
Colloquium
Thursday, 3:20, in VinH 16Professor Lior Pachter
of University of California, Berkeley
will speak on
"From Drosophila and transposable elements to phylogenetic networks and
associahedra"
We begin with an overview of the Drosophila genome project, whose goal is the sequencing and comparison of 12 fruit fly genomes. In particular, we describe some of the dynamic behavior of transposable elements. These are self-replicating sequences that play a major role in shaping the structure and function of genomes. Our methods for studying transposable elements lead naturally to the analysis of split systems and their associated phylogenetic networks. We explain why the tessellation of $\overline{M}_0^n$ by associahedra is a natural candidate for the space of phylogenetic networks, and explain the relevance of this observation to the analysis of the popular neighbor-net algorithm used for studying split systems. We discuss various aspects of the neighbor-net algorithm, including its interpretation as a greedy algorithm for the traveling-salesman problem, how to obtain statistically meaningful parameters, and how to interpret its output. The application of neighbor-net to the split system we obtain from transposable elements in Drosophila reveals interesting insights about a set of species that may have undergone lineage sorting. This is joint work with Anat Caspi and Dan Levy.
Monday, 26 Feb 2007
- ... Will not meet this week
- Li Zhong will speak on "Representation theory for compact groups -- U(n)"
- ... Will not meet this week
-
Dynamical Systems Seminar:
at 3:35 in VinH 570
-
Student Lie Groups Seminar:
at 3:35 in VinH 213
-
Real Analysis:
at 4:40 in VinH 206
Tuesday, 27 Feb 2007
- Michael Kerber from University of Kaiserslautern will speak on "Title: to be announced"
- ... Will not meet this week
- Chuan Xue will speak on "A hybrid cell-based model on the streams formation in bacteria proteus mirabilis colonies"
- Alexander Korolev will speak on "Method of a-priori estimates in PDE. Topological and algebraic basics"
-
IMA Postdoc Seminar:
at 11:15 in Lind Hall 215
-
Student Algebraic Geometry, Geometry and Topology:
at 1:25 in 570 VinH
-
Jr. Colloquium:
at 3:35 in VinH 16
-
Student Seminar on Differential Equations:
at 5:00 in VinH 203B
Wednesday, 28 Feb 2007
- Professor Peter J. Olver will speak on "Moving frames in classical invariant theory and computer vision"
- Professor Scot Adams will speak on "Continuation of the junior seminar in financial math"
- Ben Rosenfield will speak on "Rationality of Eisenstein series"
- Professor Robert Strain from Harvard University will speak on "Lower bound on the blow-up rate of the axisymmetric Navier-Stokes equations"
-
Algebraic Geometry and Applications:
at 11:15 in EE/CS 3-180
-
Financial Mathematics:
at 3:30 in VinH 1
-
Student Automorphic Forms:
at 3:35 in VinH 213
-
PDE:
at 3:35 in VinH 570
Thursday, 29 Feb 2007
- Professor Kenneth R. Driessel from Iowa State University will speak on "Title: to be announced"
- Professor Peter Webb will speak on "Highest weight categories and tilting - a continuation."
- Josef Dorfmeister will speak on "A sum formula of symplectic cone"
- Professor Lior Pachter from University of California, Berkeley will speak on "From Drosophila and transposable elements to phylogenetic networks and associahedra"
- ... Will not meet this week
-
Weekly Tutorial: Real Algebraic Geometry:
at 11:15 in LindH 409
-
Algebraic Representation Theory:
at 1:25 in VinH 206
-
Differential Geometry/Symplectic Topology:
at 1:25 in 570 VinH
-
Colloquium:
at 3:20 in VinH 16
-
Informal Mathematical Biology:
at 5:30 in VinH 1
Friday, 1 Mar 2007
- ... Will not meet this week
- Pat Byrnes will speak on "Title: to be announced"
- Professor Nicholas Eriksson from Stanford University will speak on "Fourier analysis and statistics on groups"
- Jun Luo will speak on "The rate of convergence of the finite-difference approximations for parabolic Bellman equations with constant coefficients"
- Professor Wei Zhang from Columbia University will speak on "Special cycles on Shimura varieties"
-
Industrial Problems Seminar:
at 1:25 in VinH 1
-
Student Combinatorics:
at 2:30 in VinH 570
-
Combinatorics:
at 3:35 in VinH 570
-
Probability:
at 3:35 in VinH 206
-
Automorphic Forms and Number Theory:
at 3:35 in VinH 364
