Codes and Expansions (CodEx) Seminar

A pan-university, remote seminar on the theory and applications of harmonic analysis, combinatorics, and algebra.

Tuesdays at 10 a.m. PDT / 1 p.m. EDT / 7 p.m. CEST

Zoom. To access the Zoom link, please join the mailing list by entering your information here.

Recorded talks are on our Youtube channel.

Organized by:
Joey Iverson (Iowa State University)
John Jasper (South Dakota State University)
Emily King (Colorado State University)
Dustin Mixon (The Ohio State University)

Upcoming talks:

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October 27, 2020Akram Aldroubi (Vanderbilt University): [6 p.m. CET due to end of Summer Time in Europe.] "Transport transforms for data analysis and machine learning" Abstract
November 3, 2020Gerlind Plonka-Hoch (Universität Göttingen): "Optimal Rank-1 Hankel Approximation of Matrices" Abstract
November 10, 2020Alex Cloninger (University of California at San Diego): "Fast Statistical and Geometric Distances Between Families of Distributions" Abstract
November 17, 2020Philipp Petersen (Universität Wien)
November 24, 2020[NO TALK]
December 1, 2020Hartmut Führ (RWTH Aachen)
December 8, 2020Chris Heil (Georgia Tech)
Winter Holiday Break
January 26, 2021
February 2, 2021Elina Robeva (University of British Columbia)
February 9, 2021
February 16, 2021
February 23, 2021Joshua A. Grochow (University of Colorado Boulder)
March 2, 2021
March 9, 2021
March 16, 2021
March 23, 2021
March 30, 2021
April 6, 2021
April 13, 2021
April 20, 2021
April 27, 2021
May 4, 2021

Past talks:

October 20, 2020Dustin G. Mixon (The Ohio State University): "Symmetry and optimality in codes" Abstract | Video
October 13, 2020John J. Benedetto (University of Maryland): "Spectral super-resolution and unique extensions for complex measures" Abstract | Video
October 6, 2020Shahaf Nitzan (Georgia Tech): "A few remarks on 'good' exponential Riesz bases" Abstract
September 29, 2020Boris Bukh (Carnegie Mellon University): "Ranks of matrices with few distinct entries" Abstract | Video
September 22, 2020Eric Weber (Iowa State University): "Conjugate Phase Retrieval in Paley-Wiener Space" Abstract | Video | Slides
September 15, 2020Bill Martin (Worcester Polytechnic Institute): "Schoenberg's Theorem and Association Schemes" Abstract | Video | Slides
September 8, 2020Hanmeng (Harmony) Zhan (York University): "DRACKNs and their applications in quantum information" Abstract | Video
September 1, 2020Chris Manon (University of Kentucky): "Spaces of Eigenvalues" Abstract | Video
August 25, 2020Frank Vallentin (Universität zu Köln): "Coloring the Voronoi tessellation of lattices" Abstract | Video
August 18, 2020David Gross (Universität zu Köln): "Representation theory of the Clifford group, with sundry applications" Abstract | Video
August 11, 2020Kasso Okoudjou (Tufts University): "The search for universal minimizers of p-frame potentials" Abstract | Video
August 4, 2020 Marcus Appleby (University of Sydney): "SICs and Number Theory" Abstract | Video
July 28, 2020Matt Fickus (Air Force Institute of Technology): "Mutually Unbiased Equiangular Tight Frames" Abstract | Slides | Video
July 21, 2020Vern Paulsen (University of Waterloo): "Entanglement Breaking Maps and Zauner's Conjecture" Abstract | Video
July 14, 2020Afonso S. Bandeira (ETH Zurich): "Hardness of refuting coloring in random graphs and quiet computational planting" Abstract | Video
July 7, 2020Bernhard Bodmann (University of Houston): "Polynomial embeddings as cheat codes for a real Game of Sloanes" Abstract | Video
June 30, 2020Pete Casazza (University of Missouri): "Two Distance Sets" Abstract | Video
June 23, 2020Alex Iosevich (University of Rochester): "On point configurations and frame theory" Abstract | Video | Slides
June 9, 2020Gene Kopp (University of Bristol): "SIC-POVM existence and the Stark conjectures" Abstract | Video
June 2, 2020Jameson Cahill (New Mexico State University): "Optimal Parseval Frames" Abstract | Video
May 26, 2020Chris Cox (Carnegie Mellon University / Iowa State University): "Nearly Orthogonal Vectors" Abstract | Video
May 19, 2020Hans Parshall (Ohio State University / Western Washington University): "Optimal Line Packings" Abstract | Video