MONDAY, OCTOBER 3, 2005

DIFFERENTIAL EQUATIONS, APPLIED/COMPUTATIONAL MATH SEMINAR
TIME: 3:35 p.m.
ROOM: 104 Ayres Hall
SPEAKER: Professor Andreas Prohl, ETH Zurich, Switzerland
TITLE: Total variation flow, heat flow, and 1-harmonic map flow

THURSDAY, OCTOBER 6, 2005

PROBABILITY SEMINAR
TIME: 1:10 – 2:00 p.m.
ROOM: 209A Ayres Hall
SPEAKER: Assistant Professor Xia Chen
TITLE: Moment inequalities for the local times of multi-parameter processes. (Continued)

COLLOQUIUM (Thursday, October 6, 2005)
TIME: 3:30 p.m.
ROOM: 214 Ayres Hall
SPEAKER: Washington Mio, Professor of Mathematics
Florida State University, Tallahassee
TITLE: Planar Shapes in Computer Vision
ABSTRACT: Shapes and textures present in an image are two key elements in understanding the way the image is perceived. Many image models attempt to capture the beautifully intricate, yet very natural, interaction between these somewhat independent components of images. In this talk, I will discuss some mathematical models of shapes of plane curves and geometric shape-analysis algorithms derived from the models. Shapes are viewed as elements of a quotient space of a Riemannian manifold of curves and geodesics are used to quantify shape divergence, interpolate shapes, and produce statistical models for families of shapes. Many illustrations of shape geodesics will be presented, as well as results of various shape clustering and sampling experiments.

REFRESHMENTS WILL BE SERVED IN AYRES HALL ROOM 119 AT 3:00 P.M.

FRIDAY, OCTOBER 7, 2005

TOPOLOGY SEMINAR
TIME: 12:20 – 1:10 p.m.
ROOM: 209B Ayres Hall
SPEAKER: Mr. Atish Mitra
TITLE: Asymptotic Dimension of Metric Spaces – VI
ABSTRACT: We will estimate the asymptotic dimensions of hyperbolic groups.