Codes and Expansions (CodEx) Seminar
An international remote seminar on the theory and applications of harmonic analysis, combinatorics, and algebra.
When:
Tuesdays at 10 a.m. PDT / 1 p.m. EDT / 5 p.m. UTC / 7 p.m. CEST
Where:
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 (Air Force Institute of Technology)
Emily J. King (Colorado State University)
Dustin Mixon (The Ohio State University)
Upcoming talks:
| April 30, 2024 | No talk. |
|---|---|
| May 7, 2024 | Ole Christensen (Technical University of Denmark): "Frames and redundancy" |
| May 14, 2024 | Joey Iverson (Iowa State University) |
Past talks:
| April 23, 2024 | Nathaniel Johnston (Mount Allison University): "A New Formula for the Determinant" Abstract |
|---|---|
| April 16, 2024 | Mátyás Domokos (Alfréd Rényi Institute of Mathematics): "Degree bounds for separating invariants" Abstract | Video |
| April 2, 2024 | Jonathan D.H. Smith (Iowa State University) "Codes, Errors, and Loops" Abstract | Video |
| March 26, 2024 | Elizabeth Munch (Michigan State University) "Comparing Embedded Shapes Using Topological Summaries" Abstract | Video |
| March 19, 2024 | Demetrio Labate (University of Houston) "Provable approximations of multivariate functions on smooth manifolds using deep ReLU neural networks" Abstract | Video |
| March 5, 2024 | Joe Kileel (University of Texas at Austin): "Covering Number of Real Algebraic Varieties and Beyond" Abstract | Video |
| February 27, 2024 | Samuel Ballas (Florida State University) "Frame theory for vector bundles" Abstract | Video |
| February 20, 2024 | Abiy Tasissa (Tufts University) "A dual basis approach to classical multidimensional scaling" Abstract | Video |
| February 13, 2024 | Joseph Thomas Iosue (University of Maryland) "Projective toric designs, difference sets, and quantum state designs" Abstract | Video |
| February 6, 2024 | Francesca Bartolucci (TU Delft): "A Tour in Wavelet Phase Retrieval" Abstract | Video |
| January 30, 2024 | Oscar Mickelin (Princeton University): "A fast algorithm for Fourier-Bessel expansions" Abstract | Video |
| January 23, 2024 | Edinah Koffi Gnang (Johns Hopkins University): "From graph decomposition to matrix apportionment and back" Abstract |
| December 5, 2023 | Hannah Lawrence (MIT): "Learning Polynomial Problems with SL(2,R)-Equivariance" Abstract | Video |
| November 14, 2023 | Michael Catanzaro (Geometric Data Analytics, Inc.): "Topological Parallax: A Geometric Specification for Deep Perception Models" Abstract | Video |
| November 7, 2023 | Daniel Freeman (St Louis University): "Recovering vectors from saturated measurements" Abstract | Video |
| October 31, 2023 | Sylvester Eriksson-Bique (University of Jyväskylä): "BiLipschitz Embeddings of Manifolds, Orbifolds and Metric Spaces" Abstract | Video |
| October 24, 2023 | Ben Blum-Smith (Johns Hopkins University): "Estimating a signal corrupted by a cyclic group action plus noise" Abstract | Video |
| October 17, 2023 | Shira Faigenbaum-Golovin (Duke University): "Can We Approximate It? Manifolds, Refinable Functions, and the Approximation Power of Neural Networks" Abstract | Video |
| October 10, 2023 | Dan Edidin (University of Missouri): "The second moment and the sparse multi-reference alignment problem" Abstract | Video |
| October 3, 2023 | Courtney Paquette (McGill University): "Hitting the High-D(imensional) Notes: An ODE for SGD learning dynamics in high-dimensions" Abstract | Video |
| September 26, 2023 | Mark Iwen (Michigan State): "Sparse Spectral Methods for Solving High-Dimensional and Multiscale Elliptic PDEs" Abstract | Video |
| September 19, 2023 | Robert Webber (Caltech): "Rocket-propelled Cholesky: Addressing the challenges of large-scale kernel computations" Abstract | Video |
| September 12, 2023 | Steven Gortler (Harvard University): "Invariant Embeddings" Abstract | Video |
| August 22, 2023 | [Summer Student and Postdoc Talks] Efstratios Tsoukanis (University of Maryland): "Coorbit Invariant Embeddings" Abstract | Video |
| August 15, 2023 | [Summer Student and Postdoc Talks] Daniel Packer (The Ohio State University): "Max Filtering with Reflection Groups" Abstract | Video |
| August 8, 2023 | [Summer Student and Postdoc Talks] Arun Suresh (University of Missouri): "On the Generic Crystallographic Phase Retrieval Problem" Abstract | Video |
| August 1, 2023 | [Summer Student and Postdoc Talks] Christopher Dock (Tufts University): "Instability of Quantum Tomography with Bounded Operators" Abstract | Slides | Video |
| July 25, 2023 | [Summer Student and Postdoc Talks] David Bartusel (RWTH Aachen): "The role of connectedness in STFT phase retrieval" Abstract | Video |
| July 18, 2023 | [Summer Student and Postdoc Talks] Keenan Eikenberry (Arizona State University): "Markov Kernels Valued in Wasserstein Spaces" Abstract | Video |
| July 11, 2023 | [Summer Student and Postdoc Talks] Mitchell Taylor (UC Berkeley): "Stable phase retrieval in function spaces" Abstract | Video |
| June 27, 2023 | [Summer Student and Postdoc Talks] Pu-Ting Yu (Georgia Tech): "Convergence of Frame Series" Abstract | Video |
| June 22, 2023 | [Summer Student and Postdoc Talks] Donggeun Ryou (University of Rochester): "Near-Optimal Restriction Estimates for Cantor Sets on the Parabola" Abstract | Video |
| June 14, 2023 | [Summer Student and Postdoc Talks] Dylan Domel-White (Vanderbilt University): "Algorithms and Guarantees for One-bit Phase Retrieval" Abstract | Video |
| June 6, 2023 | [Summer Student and Postdoc Talks] Marc Christian Zimmermann (University of Cologne): "Critical lattices in the Gaussian core model" Abstract | Video |
| May 30, 2023 | [Summer Student and Postdoc Talks] Josue Tonelli-Cueto (University of Texas San Antonio / Johns Hopkins University): "Condition Numbers and Probability for Explaining Algorithms" Abstract | Video |
| May 2, 2023 | Jakob Lemvig (Technical University of Denmark - DTU): "The Gabor frame set problem for Hermite functions" Abstract | Video |
| April 25, 2023 | James Murphy (Tufts University): "Intrinsically Low-Dimensional Models for Wasserstein Space: Geometry, Statistics, and Learning" Abstract | Video |
| April 18, 2023 | Margaret Cheney (Colorado State University): "Tuning to Target Resonances" Abstract | Video |
| April 11, 2023 | Shahaf Nitzan (Georgia Tech): "A set with no Riesz basis of exponentials" Abstract |
| April 4, 2023 | Bill Martin (Worcester Polytechnic Institute): "Quantum isomorphic graphs from association schemes" Abstract | Video |
| March 28, 2023 | Dustin G. Mixon (The Ohio State University): "Bilipschitz invariants" Abstract | Video |
| March 21, 2023 | Rachel Greenfeld (Institute for Advanced Study, Princeton): "The structure of translational tilings" Abstract |
| March 7, 2023 | Krystal Guo (University of Amsterdam and QuSoft): "Strongly regular graphs with a regular point" Abstract | Video |
| February 28, 2023 | Judith Packer (University of Colorado Boulder): "Wavelets coming from representations of graph C*-algebras" Abstract | Slides | Video |
| February 21, 2023 | Nadav Dym (Technion): "Efficient Invariant Embeddings for 3D point sets" Abstract | Video |
| February 14, 2023 | Alhussein Fawzi (Google DeepMind): "Discovering faster matrix multiplication algorithms with deep reinforcement learning" Abstract | Video |
| February 7, 2023 | Ursula Molter (Universidad de Buenos Aires): "Best 'good' subspace data fitting" Abstract | Video |
| January 31, 2023 | Ingemar Bengtsson (Stockholm University): "Pythagorean SICs" Abstract | Video |
| January 24, 2023 | Oleg Musin (University of Texas Rio Grande Valley) "Majorization and optimal spherical configurations" Abstract | Video |
| January 17, 2023 | Stefan Steinerberger (University of Washington): "Graphical Designs" Abstract | Slides | Video |
| December 6, 2022 | Bernhard Bodmann (University of Houston): "Spotting irregularities with reaction and diffusion: A scattering transform on graphs and extremes in log-normal random walks" Abstract | Video |
| November 29, 2022 | Tom Needham (Florida State University): "Symplectic Geometry and Fusion Frames" Abstract | Video |
| November 15, 2022 | Felix Voigtländer (Catholic University Eichstätt-Ingolstadt): "Sampling numbers of the Fourier-type Barron spaces" Abstract | Video |
| November 8, 2022 | Andreas Heinecke (Yale-NUS College): "Unsupervised statistical learning in ancient economic history" Abstract | Video |
| November 1, 2022 | Carlos Cabrelli (University of Buenos Aires): "Frames by Orbits of Operators and Model Spaces" Abstract | Video |
| October 25, 2022 | Kiyoto Yoshino (Tohoku University): "The Lemmens-Seidel conjecture for base size 5" Abstract | Video |
| October 18, 2022 | Doug Cochran (Arizona State University): "Geometry of Invariants for Generalized Coherence Tests" Abstract | Video |
| October 11, 2022 | Danylo Yakymenko (Institute of Mathematics of NAS of Ukraine): "On the continuous Zauner conjecture" Abstract | Video | Slides |
| October 4, 2022 | Dardo Goyeneche (Universidad de Antofagasta): "Mutually unbiased frames" Abstract | Video | Slides |
| September 27, 2022 | Pete Casazza (University of Missouri): "Piecewise Scalable Frames" Abstract | Video |
| September 20, 2022 | Travis Russell (Dartmouth College): "Quantum correlations via Operator Systems" Abstract | Video |
| September 6, 2022 | Michael Perlmutter (University of California Los Angeles): "Group Invariant Scattering on Graphs, Manifolds, and Other Measure Spaces" Abstract | Video | Slides |
| August 30, 2022 | John Jasper (Air Force Institute of Technology): "Equi-isoclinism from symmetry" Abstract | Slides | Video |
| August 23, 2022 | Jameson Cahill (University of North Carolina at Wilmington): "Max filtering" Abstract | Video |
| August 16, 2022 | [Summer Student and Postdoc Talks] Matthias Wellershoff (University of Maryland): "Uniqueness of phase retrieval from sampled Gabor measurements: a short overview" Abstract | Video |
| August 9, 2022 | [Summer Student and Postdoc Talks] Vicky Kouni (University of Athens): "Analysis Compressed Sensing: from Model-Based Methods to Deep Unfolding Networks" Abstract | Video |
| July 19, 2022 | [Summer Student and Postdoc Talks] Victor Bailey (Georgia Tech) "Frames via Unilateral Iterations of Bounded Operators" Abstract | Video |
| July 12, 2022 | [Special Session on Recent Advances in Packing] Shujie Kang (University of Texas at Arlington): "Non-informationally complete Gabor POVMs" Abstract | Video |
| July 5, 2022 | [Special Session on Recent Advances in Packing] Shuxing Li (Simon Fraser University): "Packings of Partial Difference Sets" Abstract | Video |
| June 28, 2022 | [Summer Student and Postdoc Talks] Simon Ruetz (Universität Innsbruck): "Adapted variable density subsampling for compressed sensing" Abstract | Video |
| June 21, 2022 | [Special Session on Recent Advances in Packing] Xinyu (Norah) Tan (Duke University): "Quadratic Form Diagonal Gates and Grassmannian Packings" Abstract | Video Zilin Jiang (Arizona State University): "Forbidden subgraphs and spherical two-distance sets" Abstract | Video |
| June 14, 2022 | [Special Session on Recent Advances in Packing] Dustin G. Mixon (The Ohio State University): "An Approximate Positivstellensatz" Abstract | Video Kasso Okoudjou (Tufts University): "Minimizing the p-frame potentials" Abstract | Video |
| June 7, 2022 | [Special Session on Recent Advances in Packing] Gary Greaves (Nanyang Technological University): "Hermitian matrices of roots of unity and their characteristic polynomials" Abstract | Video Matt Fickus (Air Force Institute of Technology): "Harmonic Grassmannian codes" Abstract | Video |
| May 31, 2022 | [Special Session on Recent Advances in Packing] Emily J. King (Colorado State University): "The Combinatorics of Equiangular Tight Frame Substructures" Abstract | Video Alexander Barg (University of Maryland): "Bounds for the sum of distances of spherical sets of small size" Abstract | Video |
| May 24, 2022 | [Special Session on Recent Advances in Packing] Gene Kopp (Purdue University/Louisiana State University): "A step toward a constructive proof of Zauner's conjecture" Abstract | Video |
| May 3, 2022 | Amit Singer (Princeton University): "Method of moments in cryo-electron microscopy" Abstract | Video |
| April 26, 2022 | Doug Hardin and Nate Tenpas (Vanderbilt University): "Linear programming bounds for discrete periodic energy problems" Abstract | Video |
| April 19, 2022 | Deanna Needell (University of California Los Angeles): "Online nonnegative matrix factorization and applications" Abstract | Video |
| April 12, 2022 | Hau-Tieng Wu (Duke University): "Some recent progress in diffusion based manifold learning and its applications" Abstract | Video |
| April 5, 2022 | Simon Foucart (Texas A&M University): "Integrating Observation Errors in Optimal Recovery" Abstract |
| March 29, 2022 | Felix Krahmer (Technische Universität München): "The convex geometry of blind deconvolution revisited" Abstract | Video |
| March 22, 2022 | Soledad Villar (Johns Hopkins University): "Equivariant machine learning and dimensional analysis" Abstract | Video |
| March 15, 2022 | Sinan Gunturk (New York University): "Approximation with one-bit polynomials and one-bit neural networks" Abstract | Video |
| March 8, 2022 | Igor Balla (Hebrew University of Jerusalem): "Equiangular lines and regular graphs" Abstract | Video |
| March 1, 2022 | Jonathan Jedwab (Simon Fraser University): "Perfect sequence covering arrays" Abstract | Slides | Video |
| February 22, 2022 | Sho Suda (National Defense Academy of Japan) "Two topics on equiangular tight frames" Abstract | Video |
| February 15, 2022 | Tim Kunisky (Yale University): "Dual bounds for the positive definite functions approach to mutually unbiased bases" Abstract | Video |
| February 8, 2022 | Darrin Speegle (Saint Louis University): "Simultaneous Dilation and Translation Tilings of R^n" Abstract | Video |
| February 1, 2022 | Henry Adams (Colorado State University): "The topology of projective codes" Abstract | Slides | Video |
| January 25, 2022 | Lutz Warnke (University of California San Diego): "The Density of Costas Arrays Decays Exponentially" Abstract | Video |
| January 18, 2022 | Bernd Sturmfels (University of California Berkeley and Max Planck Institute for Mathematics in the Sciences Leipzig): "Linear PDE with Constant Coefficients" Abstract | Slides |
| December 7, 2021 | Rima Alaifari (ETH Zürich): "(Non-)uniqueness of phase recovery from Gabor and wavelet transform measurements" Abstract | Video |
| November 30, 2021 | Dan Edidin (University of Missouri): "Dihedral multi-reference alignment" Abstract | Video | Slides |
| November 16, 2021 | Wojciech Czaja (University of Maryland): "Fourier Scattering as Efficient Feature Extraction" Abstract | Video |
| November 9, 2021 | Monika Dörfler (Universität Wien): "Structure and Effective Dimensionality of Time Series Data Sets" Abstract |
| November 2, 2021 | Alexander Powell (Vanderbilt University): "Dynamical Duals and Error Diffusion" Abstract |
| October 26, 2021 | Markus Grassl (International Centre for Theory of Quantum Technologies, University of Gdańsk): "Computing SIC-POVMs using Permutation Symmetries and Stark Units" Abstract | Video | Slides |
| October 19, 2021 | Joey Iverson (Iowa State University): "Equiangular lines over finite fields" Abstract | Video | Slides |
| October 12, 2021 | Clay Shonkwiler (Colorado State University): "A Lie Algebraic Perspective on Frame Theory" Abstract | Video |
| October 5, 2021 | X.Y. Han (Cornell University): "Prevalence of Neural Collapse during the terminal phase of deep learning training" Abstract | Video |
| September 28, 2021 | Boumediene Et-Taoui (Université de Haute Alsace): "A survey on complex conference matrices" Abstract | Video | Slides |
| September 21, 2021 | Naoki Saito (University of California Davis): "Multiscale Graph Basis Dictionaries" Abstract | Video |
| September 14, 2021 | Tom Needham (Florida State University): "Applications of Symplectic Geometry to Frame Theory" Abstract | Video | Slides |
| September 7, 2021 | Armenak Petrosyan (Georgia Institute of Technology): "Integral neural networks with weight penalization" Abstract | Video |
| August 31, 2021 | Mauro Maggioni (Johns Hopkins University): "Learning Interaction laws in particle- and agent-based systems" Abstract | Video |
| August 24, 2021 | Longxiu Huang (University of California Los Angeles): "CUR Decompositions and their Applications" Abstract | Video |
| August 10, 2021 | Romanos Diogenes-Malikiosis (Aristotle University of Thessaloniki): "Recent developments in the discrete Fuglede conjecture" Abstract | Slides | Video |
| August 3, 2021 | Matt Herman (Fourier Genetics): "Fourier Analysis on the Genome" Abstract | Video | Slides |
| July 27, 2021 | Nate Strawn (Georgetown University): "3D Filament Plots from Optimally Smooth 2D Andrew's Plots" Abstract | Slides | Video |
| July 13, 2021 | [Summer Student and Postdoc Talks] Davi Castro-Silva (Universität zu Köln): "Geometrical sets with forbidden configurations" Abstract | Video | Slides |
| July 6, 2021 | [Summer Student and Postdoc Talks] Nathan Lindzey (University of Colorado Boulder): "Discrete Harmonic Analysis on Matchings" Abstract | Video |
| June 29, 2021 | Xuemei Chen (University of North Carolina Wilmington): "Frame optimization with projective Riesz kernel" Abstract | Video |
| June 22, 2021 | [Summer Student and Postdoc Talks] Nadiia Derevianko (Universität Göttingen): "Estimation of Signal Parameters by Iterative Rational Approximation" Abstract | Video |
| June 15, 2021 | Michael Perlmutter (University of California Los Angeles): "Convolutional Networks on (Directed) Graphs via the Graph Fourier Transform" Abstract | Video | Slides |
| June 8, 2021 | Mikhail Ganzhinov (Aalto University): "Infinite families of optimal biangular line packings" Abstract | Video |
| June 1, 2021 | [Summer Student and Postdoc Talks] Joseph Cummings (University of Kentucky): "Phylogenetic Networks" Abstract | Video |
| May 25, 2021 | Elina Robeva (University of British Columbia): "Orthogonal and Incoherent Tensor decomposition" Abstract | Video |
| May 18, 2021 | Radu Balan (University of Maryland):"Embeddings of Metric Spaces induced by Permutation Groups" Abstract | Video |
| May 11, 2021 | Steve Butler (Iowa State University): "Hadamard diagonalizable graphs of small order" Abstract | Video |
| May 4, 2021 | Cynthia Vinzant (North Carolina State University): "The geometry of spectrahedra" Abstract | Video | Slides |
| April 27, 2021 | Azita Mayeli (City University of New York, the Graduate Center): "Exponential completeness and φ-approximate orthogonality on the unit ball" Abstract |
| April 20, 2021 | Marcin Bownik (University of Oregon): "Multiplication-invariant operators and the classification of abelian group frames" Abstract | Video | Slides |
| April 13, 2021 | Gary Greaves (Nanyang Technological University): "Real equiangular line systems in low dimensions" Abstract | Video | Slides |
| April 6, 2021 | Robert Calderbank (Duke University): "Coherent Noise" Abstract | |
| March 30, 2021 | Vignon Oussa (Bridgewater State University): "Why are topics such as differential geometry and representation theory useful to frame theory?" Abstract | Video |
| March 23, 2021 | Zilin Jiang (Arizona State University): "Spherical two-distance sets and spectral theory of signed graphs" Abstract " Video |
| March 16, 2021 | Daniel Freeman (St Louis University): "Discretizing L_p norms" Abstract | Video |
| March 9, 2021 | Keaton Hamm (The University of Texas at Arlington): "Column Selection and You" Abstract | Video |
| March 2, 2021 | Ram Zamir (Tel Aviv University): "Asymptotic Frame Theory for Analog Coding" Abstract | Video | Slides |
| February 23, 2021 | Joshua A. Grochow (University of Colorado Boulder): "Codes and Expansions in Algorithms for Matrix Multiplication" Abstract | Video | Slides |
| February 16, 2021 | Karin Schnass (Universität Innsbruck): "Random submatrices with non-uniformly distributed supports" Abstract | Video |
| February 9, 2021 | Eugenio Hernández (Universidad Autónoma de Madrid): "Spaces invariant under unitary representations and the bracket" Abstract | Slides | Video |
| February 2, 2021 | Emily J. King (Colorado State University): "A Potpourri of Projective 2-Designs" Abstract | Video | Slides |
| January 26, 2021 | Steven Flammia (AWS Center for Quantum Computing): "Ghosts, Necromancy, and Zauner's Conjecture" Abstract | Video |
| December 8, 2020 | Chris Heil (Georgia Tech): "Frames, Erasures, and Excess in Infinite Dimensions" Abstract | Video | Slides |
| December 1, 2020 | Hartmut Führ (RWTH Aachen): "Frames of translates and the bandwidth intuition" Abstract | Video | Slides |
| November 17, 2020 | Philipp Petersen (Universität Wien): "Functions with structured singularities" Abstract | Video |
| November 10, 2020 | Alex Cloninger (University of California at San Diego): "Fast Statistical and Geometric Distances Between Families of Distributions" Abstract | Video |
| November 3, 2020 | Gerlind Plonka-Hoch (Universität Göttingen): "Optimal Rank-1 Hankel Approximation of Matrices" Abstract | Video | Slides |
| October 27, 2020 | Akram Aldroubi (Vanderbilt University): "Transport transforms for data analysis and machine learning" Abstract | Video |
| October 20, 2020 | Dustin G. Mixon (The Ohio State University): "Symmetry and optimality in codes" Abstract | Video |
| October 13, 2020 | John J. Benedetto (University of Maryland): "Spectral super-resolution and unique extensions for complex measures" Abstract | Video |
| October 6, 2020 | Shahaf Nitzan (Georgia Tech): "A few remarks on 'good' exponential Riesz bases" Abstract |
| September 29, 2020 | Boris Bukh (Carnegie Mellon University): "Ranks of matrices with few distinct entries" Abstract | Video |
| September 22, 2020 | Eric Weber (Iowa State University): "Conjugate Phase Retrieval in Paley-Wiener Space" Abstract | Video | Slides |
| September 15, 2020 | Bill Martin (Worcester Polytechnic Institute): "Schoenberg's Theorem and Association Schemes" Abstract | Video | Slides |
| September 8, 2020 | Hanmeng (Harmony) Zhan (York University): "DRACKNs and their applications in quantum information" Abstract | Video |
| September 1, 2020 | Chris Manon (University of Kentucky): "Spaces of Eigenvalues" Abstract | Video |
| August 25, 2020 | Frank Vallentin (Universität zu Köln): "Coloring the Voronoi tessellation of lattices" Abstract | Video |
| August 18, 2020 | David Gross (Universität zu Köln): "Representation theory of the Clifford group, with sundry applications" Abstract | Video |
| August 11, 2020 | Kasso 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, 2020 | Matt Fickus (Air Force Institute of Technology): "Mutually Unbiased Equiangular Tight Frames" Abstract | Slides | Video |
| July 21, 2020 | Vern Paulsen (University of Waterloo): "Entanglement Breaking Maps and Zauner's Conjecture" Abstract | Video |
| July 14, 2020 | Afonso S. Bandeira (ETH Zürich): "Hardness of refuting coloring in random graphs and quiet computational planting" Abstract | Video |
| July 7, 2020 | Bernhard Bodmann (University of Houston): "Polynomial embeddings as cheat codes for a real Game of Sloanes" Abstract | Video |
| June 30, 2020 | Pete Casazza (University of Missouri): "Two Distance Sets" Abstract | Video |
| June 23, 2020 | Alex Iosevich (University of Rochester): "On point configurations and frame theory" Abstract | Video | Slides |
| June 9, 2020 | Gene Kopp (University of Bristol): "SIC-POVM existence and the Stark conjectures" Abstract | Video |
| June 2, 2020 | Jameson Cahill (New Mexico State University): "Optimal Parseval Frames" Abstract | Video |
| May 26, 2020 | Chris Cox (Carnegie Mellon University / Iowa State University): "Nearly Orthogonal Vectors" Abstract | Video |
| May 19, 2020 | Hans Parshall (Ohio State University / Western Washington University): "Optimal Line Packings" Abstract | Video |