Seminars and Colloquia by Series

Wednesday, October 24, 2018 - 12:55 , Location: Skiles 006 , Dmitry Ryabogin , Kent State University , ryabogin@math.kent.edu , Organizer: Galyna Livshyts
TBA
Friday, October 19, 2018 - 15:00 , Location: Skiles 005 , Boris Bukh , Carnegie Mellon University , Organizer: Lutz Warnke
Wednesday, October 17, 2018 - 14:10 , Location: Skiles 006 , Christina Giannitsi , Georgia Institute of technology , cgiannitsi@gatech.edu , Organizer: Galyna Livshyts
TBA
Wednesday, October 17, 2018 - 13:55 , Location: Skiles 005 , Longxiu Huang , Vanderbilt University , Organizer: Shahaf Nitzan
Wednesday, October 10, 2018 - 13:55 , Location: Skiles 005 , Lenka Slavikova , University of Missouri , slavikoval@missouri.edu , Organizer: Michael Lacey
Wednesday, October 10, 2018 - 12:55 , Location: Skiles 006 , Josiah Park , Georgia institute of Technology , j.park@gatech.edu , Organizer: Galyna Livshyts
It has been known that when an equiangular tight frame (ETF) of size |Φ|=N exists, Φ ⊂ Fd (real or complex), for p > 2 the p-frame potential ∑i ≠ j | < φj, φk > |p achieves its minimum value on an ETF over all N sized collections of vectors. We are interested in minimizing a related quantity: 1/ N2 ∑i, j=1 | < φj, φk > |p . In particular we ask when there exists a configuration of vectors for which this quantity is minimized over all sized subsets of the real or complex sphere of a fixed dimension. Also of interest is the structure of minimizers over all unit vector subsets of Fd of size N. We shall present some results for p in (2, 4) along with numerical results and conjectures. Portions of this talk are based on recent work of D. Bilyk, A. Glazyrin, R. Matzke, and O. Vlasiuk.
Series: PDE Seminar
Tuesday, October 9, 2018 - 15:05 , Location: Skiles 006 , Marc Sedjro , African Institute for Mathematical Sciences, Tanzania , Organizer: Yao Yao
Wednesday, October 3, 2018 - 13:55 , Location: Skiles 005 , Allysa Genschaw , University of Missouri , adcvd3@mail.missouri.edu , Organizer: Michael Lacey
Wednesday, October 3, 2018 - 12:55 , Location: Skiles 006 , Xingyu Zhu , Georgia Institute of Technology , xyzhu@gatech.edu , Organizer: Galyna Livshyts
TBA
Monday, October 1, 2018 - 15:30 , Location: TBA , TBA , TBA , Organizer: Caitlin Leverson

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