Events for 03/20/2019 from all calendars
Noncommutative Geometry Seminar
Time: 2:00PM - 2:50PM
Location: BLOC 628
Speaker: Zhuang Niu, University of Wyoming
Title: [Colloquium] Comparison radius and mean dimension
Abstract: Comparison radius of a C*-algebra was introduced by Toms to measure the regularity of a C*-algebra, and it can be regarded as a C*-version of dimension growth. Mean topological dimension was introduced by Gromov and developed by Lindenstrauss and Weiss, and it is an invariant for topological dynamical systems which measures dimension growth along orbits. In the talk, I will discuss some estimations of the comparison radius of the crossed product C*-algebra in terms of the mean dimension of the dynamical system.
Numerical Analysis Seminar
Time: 4:00PM - 5:00PM
Location: BLOC 220
Speaker: Antoine Mellet, UMD
Title: Anomalous Diffusion Phenomena: A Kinetic Approach
Abstract: The derivation of diffusion or drift-diffusion equations from transport equations (such as Vlasov-Fokker-Planck or Boltzmann equations) is a classical problem. In this talk, we will discuss situations in which the usual derivation fails because the mean squared displacement of the particles does not grow linearly with time. We will show that such "anomalous diffusion" regimes typically lead to fractional diffusion equations. We will present results in both bounded and unbounded domain and we will discuss some applications to the description of anomalous energy transport in chains of non-harmonic oscillators (FPU-alpha and FPU-beta chains).
First Year Graduate Student Seminar
Time: 5:30PM - 6:30PM
Location: BLOC 628
Speaker: Peter Howard
Title: Jobs in the profession