Past Seminars- Colloquium

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  • Herbert Amann
    Thu Oct 23, 2014
    4:00 pm
  • Frank Bauerle and Tony Tromba
    Thu Oct 16, 2014
    4:00 pm
    Frank Bäuerle and Tony Tromba from UC Santa Cruz, will describe UC's Calculus Online, now available to all UC students through our new cross campus enrollment system as well as to all non matriculated students including foreign nationals. Calculus I for Science and Engineering Students has been successfully running for over a year and...
  • Peter Polacik
    Thu May 8, 2014
    4:00 pm
    Unlike their counterparts on bounded domains, semilinear heat equations on $R^N$ admit bounded solutions with very diverse large-time behavior. I will first present several examples of solutions with interesting and sometimes entertaining behavior in compact regions. Then I will discuss a few general results describing the behavior of more...
  • Barry Simon
    Thu May 1, 2014
    4:00 pm
    This is not a mathematics talk but it is a talk for mathematicians. Too often, we think of historical mathematicians as only names assigned to theorems. With vignettes and anecdotes, I'll convince you they were also human beings and that, as the Chinese say,"May you live in interesting times" really is a curse.
  • Alexander Kechris
    Thu Apr 17, 2014
    4:00 pm
    Recently there has been considerable activity in the study of the dynamics of these groups and this work has led to interesting interactions between logic, finite combinatorics, group theory (both in the topological and algebraic context), topological dynamics, ergodic theory and representation theory. In this lecture I will give a survey of some...
  • David Damanik
    Thu Apr 3, 2014
    4:00 pm
    A subset of the real line is called a Cantor set if it is compact, perfect, and nowhere dense. Cantor sets arise in many areas; in this talk we will discuss their relevance in the spectral theory of Schr\"odinger operators. We discuss several results showing that the spectrum of such an operator is a Cantor set, from the discovery of the...
  • Ciprian Manolescu
    Thu Mar 6, 2014
    4:00 pm
    The triangulation conjecture stated that any n-dimensional topological manifold is homeomorphic to a simplicial complex. It is true in dimensions at most 3, but false in dimension 4 by the work of Casson and Freedman. In this talk I will explain the proof that the conjecture is also false in higher dimensions. This result is based on previous...