University of Georgia
Department of Mathematics
Seminar Schedule
April 19 - April 23, 2004
All Seminars are held in Boyd Graduate Studies Bldg. unless
otherwise noted.
VIGRE - Algebra
2:30p.m., Room 410
Speaker: Jerry Hower, University of Georgia
Title of talk: I will discuss the proof of the conjectures
concerning N_r(g) being the orbit closure of a appropriate
single orbit for the B,C,D type root systems in their bad characteristic p=2.
Topology
2:30p.m., Room 322
No meeting this week
Faculty and Graduate Social
3:00p.m., Room 409
Coffee, Cookies, Tea
Lie Theory
3:30p.m., Room 303
Speaker: Brian Boe, University of Georgia
Title of talk: Representation type of the blocks of category
${\mathcal O}_S$
Abstract: This will be an amalgamation of my talk of the same
title from Sept. 29, 2003, and Dan Nakano's talk on representation type from
the previous week.
Stochastic Processes
3:30p.m., Room 410
Speaker: Billy Jackson, University of Georgia
Title of talk: Stochastic Differential Equations
Abstract: We will classify certain SDEs and begin trying
to analyze the linear case. Homogeneous and nonhomogeneous cases will be considered.
Time permitting, numerical techniques may also be presented.
VIGRE Graduate Student Seminar
2:00p.m., Room 304
Speaker: Nadia Mazza, Univeristy of Georgia
Title of talk: p-fusion in finite groups and the case of
the dihedral group of order 8
Abstract: Fix a subgroup H of a finite group G. Two subgroups
(or elements) X and Y of H are fused in G if they are not conjugate in H but
they are conjugate in G. This property has been studied for a long time and
the case where we look at fusion of p-subgroups is a key tool in the local analysis
of finite groups. I will give two equivalent definitions and some basic results
of the p-fusion in finite groups. Then, I will illustrate this phenomenon by
considering the case p=2 and finite groups having a 2-Sylow subgroup isomorphic
to the dihedral group of order 8. I will make the talk as self-contained as
possible.
Special Seminar in Analysis
2:00-4:00p.m., Ga Tech, Rm. 255
Speaker: TBA
Title of talk: TBA
Wavelet Analysis
2:00p.m., Room 326
Speaker: Ming-Jun Lai, University of Georgia
Title of talk: Box spline tight frames for image denoising
Abstract: We shall use the well-known soft-thresholding method
for image denoising. Instead of using wavelets, we use box spline tight-frames.
It turns out that the tight-frames can do an excellent job. Comparison to Haar,
Daubechies D4 and biorthogonal 9/7 will be shown.
Berkovich Spaces Seminar
11:00a.m., Room 410
Organizers: Matthew Baker and Robert Rumely
Algebra
2:30p.m., Room 410
Speaker: Daniel Nakano, University of Georgia
Title of talk: Extensions for Frobenius Kernels
Algebraic Geometry Seminar
2:30p.m., Room 303
No Meeting this week
Departmental Awards Ceremony
3:00p.m., Room 409
Light refreshments will be served.
Numerical Analysis
3:30p.m., Room 303
Speaker: Ming-Jun Lai, University of Georgia
Title of talk: Convergence analysis of the argumented Lagrange
iteration algorithm
Number Theory
3:45p.m., Room 304
Speaker: Pavlos Tzermias, University of Tennessee
Title: On a theorem of Stickelberger
Abstract: We give an explicit version of a classical theorem
of Stickelberger on the representation of certain integers
by binary quadratic forms. This is achieved by generalizing Stickelberger's
original congruences via an extension of a
recent result of Young.
VIGRE - Cardiac Physiology
2:30p.m., Room 304
Speaker: TBA
Title of talk: TBA
VIGRE - Contact Topology
2:00p.m., Room 410
Organizer: Gordana Matic, University of Georgia
Student Number Theory
3:30p.m., Room 303
Speaker: Charles Pooh, University of Georgia
Title of talk: On the Sums of Four Cubes
Abstract: Following a paper of Demjanenko, we show that every
integer not congruent to +-4 modulo 9 is a sum of four cubes.
CATS
1:25-2:15pm, Room 306
Speaker: J. Qu, University of Georgia, Dept. of Computer Science
Title of talk: One-way functions
Electrodynamics Seminar
2:30p.m., Room 322
Speakers: Bob Wood and Bob Anderson, UGA Physics Department
Title of talk: New example of a complex time-dependent
Hamiltonian
Geometry
2:30p.m., Room 326
Speaker: TBA
Title of talk: TBA