Upcoming Talks
This is a list of all upcoming talks for the next two weeks. Talks are from 3:454:45 p.m. in the Colloquium or Seminar Room, unless otherwise specified.

Nov 21Representations of the CuntzKrieger algebras and Bratteli diagrams Prof. Sergey Bezuglyi The University of Iowa Time: 03:45 PM Operator Algebras and Dynamics Seminars
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The talk is devoted to the study of a new class of representations of the CuntzKrieger algebras constructed by semibranching function systems which are naturally related to stationary Bratteli diagrams. We show that isomorphic semibranching function systems generate unitarily equivalent representations of the CuntzKrieger algebras. We work with Markov measures defined on the path space of stationary Bratteli diagrams to construct isomorphic representations of these algebras. To do this, we associate a strongly directed graph to a stationary simple Bratteli diagram, and show that isomorphic graphs generate isomorphic semibranching function systems. We also consider a class of monic representations of the CuntzKrieger algebras, and classify them up to unitary equivalence. The talk is based on a joint paper with Palle E.T. Jorgensen. 
Nov 24The Spectral Method and the Paraxial Wave Equation Reza MalekMadani and Stephen Guth USNA Time: 03:45 PM Basic Notions
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We will go over a new approach to numerically simulating the solution to an initialboundary value problem that arises in modeling laser beam propagation, a topic we cover in SM421A, "Mathematics of Light", and SM282, "Introduction to Laser Research." 
Nov 24Convex Sets Associated to C$^*$algebras Scott Atkinson University of Virginia Time: 03:45 PM Operator Algebras and Dynamics Seminars
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Given a separable C$^*$algebra $A$, we can associate to $A$ an invariant given by a family of convex separable metric spaces. Each convex separable metric space is given by equivalence classes of $*$homomorphisms of $A$ into a McDuff factor $M$. This family is closely related to the trace space of $A$, and in some cases this invariant appears to be finer than the trace space invariant. This is an ongoing project based off of a 2011 paper by Nate Brown. 
Dec 01How can we support each other? Academic Center USNA Time: 12:00 PM Teaching Seminar

Dec 03