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Mathematics Department

Upcoming Talks

This is a list of all upcoming talks for the next two weeks. Talks are from 3:45-4:45 p.m. in the Colloquium or Seminar Room, unless otherwise specified.

  • Sep
    24
  • Computational Issues in Nonlinear Control and Estimation
    Arthur J. Krener
    Research Professor at NPS Applied Math and Fellow of IEEE, AMS, SIAM, and IFAC
    Location: Chauvenet 110
    Time: 12:00 PM
    Colloquium Series

    View Abstract

    In the 1960’s and 1970’s the foundations of Linear Control and Estimation Theory were developed, controllability, observability, linear quadratic regulation, Kalman Filtering, H-Infinity control, etc. In the latter part of the 1970’s with advent workstations and reliable numerical linear algorithms (Linpack, Eispack, etc) the linear theory was realized in sophisticated software tools such as Matrix X, Control C and MATLAB. MATLAB eventually won the competition and its Control Toolbox has become the de facto standard numerical tool for linear systems. The theoretical foundations of nonlinear control and estimation were laid down starting in the 1970’s and the effort continues to this day. But very little attention has been given to general purpose software for nonlinear systems. There is more or less proprietary software for particular problems, almost every research paper ends with a simulation. But what is lacking portable, scalable, reliable, relatively easy to use software for large classes of nonlinear systems. We shall discuss a few first steps in this direction.
  • Sep
    24
  • Faithfulness vs. Uniqueness, for Pseudo-Expectations
    Vrej Zarikian
    USNA
    Time: 03:45 PM
    Operator Algebras and Dynamics Seminars
  • Sep
    25
  • Polymatroids and Chuns
    Carolyn Chun
    USNA, Math
    Time: 12:00 PM
    Basic Notions Seminars

    View Abstract

    Nearly 10 years after Deborah Chun's paper on excluded minors for deletion-contraction polymatroids appeared, I am working with Joseph Bonin and Steven Noble on some excluded minor characterizations of certain classes of polymatroids related to D. Chun's work. In this talk, I define a polymatroid and present some of D. Chun's results. I will also give some motivating background and relate this subject to ongoing work in matroid theory. Note: A polymatroid is NOT a kind of matroid.
  • Oct
    01
  • Faithfulness vs. Uniqueness, for Pseudo-Expectations
    Vrej Zarikian
    USNA
    Time: 03:45 PM
    Operator Algebras and Dynamics Seminars
  • Oct
    03
  • Statistics Education at USAFA and USNA
    Matt Hawks
    USNA
    Time: 12:00 PM
    Teaching Seminar

    View Abstract

    This session provides a survey of curricular practices - both service and major - for statistics education at USNA and USAFA. Topics addressed include core requirements, modes of instruction, timing, breadth, depth, and software.
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