UC Berkeley Probabilistic Operator Algebra Seminar
Organizer: Dan-Virgil Voiculescu
If you have any questions or comments send an email to: jgarzavargas_at_berkeley_dot_edu
Upcoming talks (Fall 2021)
September 20, 10-11 a.m. (Pacific Time)
Title: Strong 1-boundedness for von Neumann algebras with property T.
Speakers: Srivatsav Kunnawalkam Elayavalli, Vanderbilt University.
Abstract
October 4, 10-12 a.m. (Pacific Time)
Title: Multiplicative and semi-multiplicative functions on non-crossing partitions, and relations to cumulants.
Speakers: Alexandru Nica and Daniel Perales, University of Waterloo.
Abstract
Past talks (Spring-Summer 2021)
September 13, 10-12 a.m. (Pacific Time)
Title: Where are the atoms? The universality of the free case.
Speakers: Guillaume Cébron and Octavio Arizmendi, Institut Mathématique de Toulouse and CIMAT Guanajuato.
Abstract, Slides Gillaume Cébron, Slides Octavio Arizmendi
August 30, 10-11:10 a.m. (Pacific Time)
Title: Binary trees, operads, and Dykema's T-transform.
Speakers: Kurusch Ebrahimi-Fard and Nicolas Gilliers, Norwegian University
of Science and Technology and University Greifswald.
Abstract, Slides
June 30, 10-12 a.m. (Pacific Time)
Title: Duality for optimal couplings in free probability.
Speaker: David Jekel and Kyeongsik Nam, UCSD and UCLA.
Abstract, Slides Kyeongsik Nam, Slides David Jekel
June 21, 10-11 a.m. (Pacific Time)
Title: Categorical probability with Markov categories.
Speaker: Tobias Fritz, University of Innsbruck.
Abstract, Slides
June 14, 10-11 a.m. (Pacific Time)
Title: Global asymptotic of particle systems at high temperature.
Speaker: Cesar Cuenca, Harvard.
Abstract, Slides
June 7, 10-11 a.m. (Pacific Time)
Title: Strong freeness of Gaussian matrices with correlated entries.
Speaker: March Boedihardjo, UCLA.
Abstract, Slides
May 31, 10-11 a.m. (Pacific Time)
Title: Positive definite reflection length in type B.
Speaker: Wiktor Ejsmont, University of Wroclaw.
Abstract, Slides
May 24, 10-11 a.m. (Pacific Time)
Title: Freeness over the diagonal and the second order distribution of Wigner matrices.
Speaker: Camille Male, CNRS Institut Mathematiques Bordeaux.
Abstract
May 17, 10-11 a.m. (Pacific Time)
Title: On operator-valued infinitesimal Boolean and monotone independence.
Speaker: Pei-Lun Tseng, Queen’s University.
Abstract, Slides
May 3, 10-11 a.m. (Pacific Time)
Title: Statistical deconvolution of the free Fokker-Planck equation at fixed time.
Speaker: Mylene Maida, University of Lille.
Abstract, Slides
April 26, 10-11 a.m. (Pacific Time)
Title: Troupes, Cumulants, and Stack-Sorting.
Speaker: Colin R. Defant, Princeton University.
Abstract, Slides
April 19, 10-11 a.m. (Pacific Time)
Title: Integrals and potentials of 1-forms on the Sierpinski gasket.
Speaker: Fabio Cipriani, Politecnico di Milano.
Abstract
April 12, 10-11 a.m. (Pacific Time)
Title: Roots of Polynomials and Free Convolution.
Speaker: Stefan Steinerberger, University of Washington, Seattle.
Abstract, Slides
April 5, 10-11 a.m. (Pacific Time)
Title: A metric characterization of freeness.
Speaker: Leonard Cadilhac, Universite Paris-Saclay.
Abstract, Slides
March 29, 10-11 a.m. (Pacific Time)
Title: Random Unitary Representations of Surface Groups.
Speaker: Michael Magee, Durham University.
Abstract, Slides
March 15, 1-2 p.m. (Pacific Time)
Title: Interpolation between random matrices and their free limit with the help of free stochastic calculus.
Speaker: Felix Parraud, University of Lyon and Kyoto University.
Abstract, Slides
March 8, 10-11 a.m. (Pacific Time)
Title: Triple operator integrals. Haagerup-like tensor products and Lipschitz type estimates for functions of pairs of non commuting self-adjoint operators.
Speaker: Vladimir Peller, Michigan State University, Lansing and St. Petersburg State University.
Abstract
March 1, 10-11 a.m. (Pacific Time)
Title: Stochastic integration with respect to the q-Brownian motion.
Speaker: Aurelien Deya, Institut Elie Cartan, Universite de Lorrainee.
Abstract, Slides
February 22, 10-12 a.m. (Pacific Time)
Title: Free Wasserstein manifold.
Speaker: David Jekel and Wuchen Li, UC San Diego and University of South Carolina at Columbia.
Abstract, Slides Wuchen Li,
Slides David Jekel.
February 8, 10-11 a.m. (Pacific Time)
Title: Metric Convergence of Spectral Triples on the Sierpinski Gasket and Other Fractal Curves.
Speaker: Therese-Marie Landry, UC Riverside.
Abstract, Slides
February 1, 10-11 a.m. (Pacific Time)
Title: Riesz transforms on compact quantum groups and strong solidity.
Speaker: Martijn Caspers, TU Delft.
Abstract, Slides
January 25, 10-12 a.m. (Pacific Time)
Title: Approximation of Free Convolutions by Infinitely Divisible Laws.
Speaker: Friedrich Goetze, University of Bielefeld.
Abstract, Slides
Past talks (Fall 2020)
November 30, 10-11 a.m. (Pacific Time)
Title: Superconvergence to freely infinitely divisible distributions and regularity of densities in free probability.
Speaker: Ping Zhong, University of Wyoming.
Abstract, Slides
November 23, 10-11 a.m. (Pacific Time)
Title: Distortion for multifactor bimodules.
Speaker: Ian Charlesworth, UC Berkeley.
Abstract, Slides
November 16, 10-11 a.m. (Pacific Time)
Title: A random matrix approach to the Peterson-Thom conjecture.
Speaker: Benjamin Hayes, University of Virginia Charlottesville.
Abstract, Slides
November 9, 10-11 a.m. (Pacific Time)
Title: Point Spectrum of Operators on Universal Covering Trees.
Speaker: Jorge Garza-Vargas, UC Berkeley.
Abstract, Slides
November 2, 10-11 a.m. (Pacific Time)
Title: Markovian fun with F + .
Speaker: Claus Koestler, University College Cork.
Abstract, Slides
Octber 26, 10-11 a.m. (Pacific Time)
Title: On the K-theory of the commutants mod trace-class in the case of hermitian and unitary operators.
Speaker: Dan-Virgil Voiculescu, UC Berkeley.
Abstract, Slides
October 19, 10-11 a.m. (Pacific Time)
Title: The Brown measure of variables with semicircular imaginary part
Speaker: Ching Wei Ho, Indiana University Bloomington.
Abstract, Slides
October 12, 10-11 a.m. (Pacific Time)
Title: The emergence of time
Speaker: Roberto Longo, University of Rome Tor Vergata.
Abstract, Slides
October 5, 10-11 a.m. (Pacific Time)
Title: Spectral deconvolution of unitary invariant models
Speaker: Pierre Tarrago, Sorbonne University.
Abstract, Slides
September 28, 10-11 a.m. (Pacific Time)
Title: Fractional free convolution powers
Speaker: Dimitri Shlyakhtenko, UCLA.
Abstract, Slides
September 21, 10-11 a.m. (Pacific Time)
Title: Subalgebras of simple AF-algebras
Speaker: Christopher Schafhauser, University of Nebraska-Lincoln.
Abstract, Slides
September 14, 10-11 a.m. (Pacific Time)
Title: Obstructions to matrix stability of discrete groups
Speaker: Marius Dadarlat, Purdue University.
Abstract
August 31, 10-11 a.m. (Pacific Time)
Title: Matrix Monge-Kantorovich Theory: A Quantum Mechanical Approach
Speaker: Allen Tannenbaum, Stony Brook University.
Abstract, Slides
August 24, 10-11 a.m. (Pacific Time)
Title: SYK model and q-Gaussian distribution
Speaker: Roland Speicher, Saarland University.
Abstract, Slides
August 17, 3-4 p.m. (Pacific Time)
Title: Limit theorems for multiplicative convolutions in classical and bi- free probabilities
Speaker: Takahiro Hasebe, Hokkaido University.
Abstract, Slides
Past talks (Summer 2020)
July 20, 10-11 a.m. (Pacific Time)
Title: Free Orthogonal Groups and Strong 1-Boundedness
Speaker: Floris Elzinga, University of Oslo.
Abstract, Slides
July 13, 10-11 a.m. (Pacific Time)
Title: Spectral stability under random absolutely continuous perturbations
Speaker: Jorge Garza Vargas, UC Berkeley.
Abstract, Slides
July 6, 10-11 a.m. (Pacific Time)
Title: Planar holonomy fields based on Zhang algebras
Speaker: Nicolas Gilliers, NTNU Trondheim.
Abstract
June 29, 10-11 a.m. (Pacific Time)
Title: Cocycle Conjugacy of Free Bogolyubov Actions of R
Speaker: Joshua Keneda, South Plains College, Levelland Texas
Abstract
June 22, 10-11 a.m. (Pacific Time)
Title: Second Order Cumulants: second order even elements and R-diagonal
elements
Speaker: Octavio Arizmendi, CIMAT Guanajuato
Abstract, Slides
June 15, 10-11 a.m. (Pacific Time)
Title: Spectral truncations in noncommutative geometry and operator systems
Speaker: Walter D. van Suijlekom, Institute for Mathematics, Astrophysics and Particle Physics, Radboud University
Abstract, Slides
June 8, 10-11 a.m. (Pacific Time)
Title: Amenable absorption via free entropy techniques
Speaker: Thomas Sinclair, Purdue University
Abstract
June 1, 10-11 a.m. (Pacific Time)
Title: On almost commuting matrices
Speaker: Tatiana Shulman, IMPAN Warsaw
Abstract, Slides
Past talks (Spring 2020)
May 18, 10-11 a.m. (Pacific Time)
Title: On random permutations sampled by surface groups
Speaker: Doron Puder, Tel Aviv University
Abstract, Slides, Figures
May 11, 10-11 a.m. (Pacific Time)
Title: On bijections between monotone increment processes, classes of
classical Markov processes and Loewner Chains
Speaker: Uwe Franz, U. Franche Comte, Besancon
Abstract, Slides
May 04, 10-11 a.m. (Pacific Time)
Title: Sums of commutators in free probability
Speaker: Franz Lehner, TU Graz
Abstract, Slides
April 27, 3-4 p.m. (Pacific Time)
Title: Commutator estimates in W*-algebras
Speaker: Fedor Sukochev, University of New South Wales
Abstract, Slides
April 20, 10-11 a.m. (Pacific Time)
Title: Free and cyclic differential calculus and characterizations of gradients
Speaker: Tobias Mai, University of Saarbrücken
Abstract, Slides
April 13, 10-11 a.m. (Pacific Time)
Title: Spectral Operators in von Neumann Algebras
Speaker: Amudhan Krishnaswamy-Usha, Texas A&M University
Abstract, Slides
April 6, 3-4 p.m. (Pacific Time)
Title: On relations between additive and max - convolutions in classical,
free and Boolean probability theory
Speaker: Yuki Ueda, National Institute of Technology, Ichinoseki College
Abstract, Slides