Week of September 20 - 24

Tuesday, September 21

 1:00 STATISTICS SEMINAR  - Room 459 MSC
      Victor Patrangenaru, Georgia State University        
      "Asymptotic probability distributions for Frechet means on
       manifolds, with applications to shapes and projective shapes"
      Abstract:  This talk is related to the topics in shape analysis
        that Professor Mardia has been lecturing about.

 2:30 ALGEBRA SEMINAR  - Room 447 MSC
      Steve McCleary, Mathematics and Statistics, BGSU 
      "Lattice-ordered permutation groups"
      Abstract: This is the first of a series of talks.  These talks
        will begin at the beginning, assuming no knowledge of
        lattice-ordered groups and hardly any knowledge of unordered
        permutation groups.

 2:30 SCIENTIFIC COMPUTATION SEMINAR  - Room 459 MSC
      Craig Zirbel, Mathematics and Statistics, BGSU 
      "An introduction to wavelets"
      Abstract: Since the late 1980's, wavelets have been a very hot
        topic in applied mathematics, signal processing, and other
        applied areas.  They are similar in some ways to Fourier
        series, but have properties that make them more appropriate in
        many settings.

        This talk is intended to be accessible to all faculty and
        students (even junior and seniors) in the department.  It is
        intended to give some idea what wavelets are about and how
        they can be used.  No prior knowledge of Fourier analysis is
        needed.  In fact, although wavelets are often discussed in
        relation to Fourier series, in this talk they will be
        discussed on their own merits for the most part.

        This seminar was organized as a group effort to learn about
        wavelets.  We will more or less follow the book Introduction
        to Wavelets and Wavelet Transforms by C. S. Burrus,
        R. A. Gopinath, and H. Guo.  (A few of us have copies that one
        could borrow for short periods.)  Craig Zirbel will speak a
        few times and then others will be encouraged to give
        additional talks.  More information on the seminar may be
        found at http://www-math.bgsu.edu/~gwade/seminar

        Note that the topic of this week's analysis seminar is related.

Wednesday, September 22

 2:30 ANALYSIS SEMINAR  - Room 459 MSC
      Neal Carothers, Mathematics and Statistics, BGSU 
      "An introduction to frames"
      Abstract: A sequence of vectors in a separable Hilbert space is
        called a frame if it is "similar to" an orthonormal basis (in
        a sense that will be made precise).  Frames arose from the
        study of discrete wavelet transforms and are currently a hot
        research area.  We will give a brief introduction to the
        theory as well as the history of frames.

Friday, September 24

 No colloquium scheduled for this week on account of the OCTM meeting.      

Professor Kanti V. Mardia of the University of Leeds is visiting Bowling Green State University during August and September as Distinguished Lukacs Professor in the Department of Mathematics and Statistics. He will give five two-hour lectures on Statistical Shape Analysis over the next few weeks. See an announcement of the lectures and directions for getting to the department.