UC Berkeley POAS

UC Berkeley Probabilistic Operator Algebra Seminar

Organizer: Dan-Virgil Voiculescu

If you have any questions or comments send an email to Jorge Garza-Vargas (jgarzav_at_caltech_dot_edu)

Upcoming talks (Spring 2024)

February 27, 10:30a.m.-12:00p.m. (Pacific Time)

Title: Selfless C*-algebras

Speaker: Leonel Robert, UL Lafayette


March 5, 10:00a.m.-11:30p.m. (Pacific Time)

Title: Almost uniform convergence in von Neumann algebras

Speaker: Eric Ricard, University of Caen Normandy


March 12, 10:30a.m.-12:00p.m. (Pacific Time)

Title: Combinatorial aspects of Parraud’s asymptotic expansion for GUE matrices

Speaker: David Jekel, Fields Institute


Past talks (Fall 2023)

February 20, 10:30a.m.-12:00p.m. (Pacific Time)

Title: On operator-valued R-diagonal and Haar unitary elements

Speaker: Ken Dykema, Texas A&M

Abstract, Slides

February 13, 10:30a.m.-12:00p.m. (Pacific Time)

Title: Nuclear C*-algebras and generalized inductive limits

Speaker: Kristin Courtney, University of Southern Denmark Odense

Abstract, Slides

February 6, 10:30a.m.-12:00p.m. (Pacific Time)

Title: Deformation of Voiculescu free Fock space and q-convolutions of probability measures on the real line

Speaker: Marek Bozejko, University of Wroclaw

Abstract, Slides

January 30, 10:30a.m.-12:00p.m. (Pacific Time)

Title: Bi-free probability and reflection positivity

Speaker: Roland Speicher, Saarland University Saarbruecken

Abstract, Slides

January 23, 10:30a.m.-12:00p.m. (Pacific Time)

Title: On Voiculescu’s Topological Free Entropy for C*-algebras

Speaker: Junhao Shen, University of New Hampshire

Abstract, Slides

January 16, 10:30a.m.-12:00p.m. (Pacific Time)

Title: The Boolean quadratic forms and tangent law

Speaker: Wiktor Ejsmont, Wroclaw University of Science and Technology

Abstract, Slides

December 11, 10-11:30a.m. (Pacific Time)

Title: Towards applications of free random variables in cognitive science

Speaker: Maciej Nowak, Mark Kac Center for Complex Systems Research, Jagellonian University Cracow

Abstract, Slides

December 4, 10-11:30a.m. (Pacific Time)

Title: Free Integral Calculus

Speaker: Franz Lehner and Kamil Szpojankowski, TU Graz and Warsaw University of Technology

Abstract, Slides Lehner, Slides Szpojankowski

November 27, 10-11:30a.m. (Pacific Time)

Title: A variational approach to free convolutions

Speaker: Octavio Arizmendi, CIMAT

Abstract, Slides

November 20, 10-11:30a.m. (Pacific Time)

Title: Finite free probability and hypergeometric polynomials

Speaker: Daniel Perales, Texas A&M

Abstract, Slides

November 6, 10-11:30a.m. (Pacific Time)

Title: The space of traces of the free group and free products of matrix algebras

Speaker: Raz Slutsky, Weizmann Institute

Abstract, Slides

October 30, 10:00-11:30a.m. (Pacific Time)

Title: Biexact von Neumann algebras

Speaker: Changying Ding, UCLA

Abstract, Slides

October 23, 10-11:30a.m. (Pacific Time)

Title: Energy of vector bundles on Dirichlet spaces and relations with topology

Speaker: Fabio Cipriani, Politecnico di Milano


October 16, 10:-11:30a.m. (Pacific Time)

Title: A conjugate system for twisted Araki-Woods algebras of finite dimensional spaces

Speaker: Zhiyuan Yang, Texas A&M

Abstract, Slides

October 2, 9:30-11:00a.m. (Pacific Time)

Title: Structure of free group factors

Speaker: Kunnawalkam Elayavalli Srivatsav, UC San Diego

Abstract, Slides

September 25, 10-11:30a.m. (Pacific Time)

Title: Infinitesimal Operators

Speaker: James A. Mingo, Queen’s University, Canada

Abstract, Slides

September 18, 10-11:30a.m. (Pacific Time)

Title: Hermite trace polynomials

Speaker: Michael Anshelevich, Texas A&M

Abstract, Slides

September 11, 10-11:30a.m. (Pacific Time)

Title: Free cumulants and large deviations for classical and quantum symmetric exclusion processes

Speaker: Philippe Biane, Universite Gustave Eiffel

Abstract, Slides

August 28, 10-11:30a.m. (Pacific Time)

Title: Decomposition of free cumulants

Speaker: Romuald Lenczewski, Wroclaw University of Science and Technology

Abstract, Slides

August 21, 10-11:30a.m. (Pacific Time)

Title: Spectral norm and strong freeness

Speaker: March Boedihardjo, ETH Zurich

Abstract, Slides

August 14, 10-11:30a.m. (Pacific Time)

Title: Free probability and polynomial roots under repeated differentiation

Speaker: Andrew Campbell, Institute of Science and Technology Austria

Abstract, Slides

Past talks (Fall 2023)

June 12, 10-11:30a.m. (Pacific Time)

Title: Computing free convolutions via contour integrals

Speaker: Alice Cortinovis, Stanford

Abstract, Slides

June 5, 10-11:30a.m. (Pacific Time)

Title: Methods of holomorphic dynamics in the study of branching processes

Speaker: Pavel Gumenyuk, Politecnico di Milano

Abstract, Slides

June 1, 10-11:30a.m. (Pacific Time)

Title: An elementary proof of χ ≤ χ* and generalization to conditional entropy

Speaker: David Jekel and Jennifer Pi, UCSD and UCI

Abstract, Slides Jekel, Slides Pi

May 22, 10-11:30a.m. (Pacific Time)

Title: Around the exact formula for the quasicentral modulus

Speaker: Dan-Virgil Voiculescu, UC Berkeley

Abstract, Slides

May 15, 10-11:30a.m. (Pacific Time)

Title: Weighted Sums in free Probability Theory

Speaker: Leonie Neufeld, University of Bielefeld

Abstract, Slides

May 8, 10-11:30a.m. (Pacific Time)

Title: Infinite Quantum Permutations.

Speaker: Christian Voigt, University of Glasgow

Abstract, Slides

May 1, 10-11:30a.m. (Pacific Time)

Title: Central limit theorems for star-generators of the infinite symmetric group.

Speaker: Claus Koestler, University College Cork

Abstract, Slides

April 24, 10:00-11:30a.m. (Pacific Time)

Title: Rectangular finite free probability.

Speaker: Aurelien Gribinski, INRIA.

Abstract, Slides

April 17, 10:00-11:30a.m. (Pacific Time)

Title: Signal communication and modular theory.

Speaker: Roberto Longo, University of Rome Tor Vergata.


April 10, 10:00-11:30a.m. (Pacific Time)

Title: Asymptotic expansions in Random Matrix Theory and application: the case of Haar unitary matrices.

Speaker: Felix Parraud, KTH Royal Institute of Technology.

Abstract, Slides

April 3, 10:00-11:30a.m. (Pacific Time)

Title: Heat flow, random matrices, and random polynomials.

Speaker: Brian Hall, University of Notre Dame

Abstract, Slides

March 20, 10:00-11:30a.m. (Pacific Time)

Title: Convergence for non-commutative rational functions evaluated in random matrices.

Speaker: Akihiro Miyagawa, University of Kyoto

Abstract, Slides

March 13 (Two Talks), 10:00a.m.-12:00p.m. (Pacific Time)

First talk: Popa’s averaging property for automorphisms on C*-algebras.

Speaker: Mikael Rordam, University of Copenhagen

Abstract, Slides

Second talk: Infinite dimensional phenomena in the analysis of Quantum Information Theory.

Speaker: Magdalena Musat, University of Copenhagen

Abstract, Slides

February 20, 10:00-11:30a.m. (Pacific Time)

Title: Factoriality of q-Araki-Woods von Neumann algebras via conjugate variables.

Speaker: Adam Skalski, Institute of Mathematics Polish Academy of Sciences

Abstract, Slides

February 13, 9:00-10:30a.m. (Pacific Time)

Title: Monotonicity of entropy for random matrices.

Speaker: Pierre Youssef, New York University Abu Dhabi

Abstract, Slides

February 6, 10:00-11:30a.m. (Pacific Time)

Title: Alpha-induction and bi-unitary connections.

Speaker: Yasuyuki Kawahigashi, University of Tokyo

Abstract, Slides

January 30, 10:00-11:30a.m. (Pacific Time)

Title: Modular Structure and Inclusions of Twisted Araki-Woods Algebras.

Speaker: Gandalf Lechner, FAU Erlangen-Nürnberg

Abstract, Slides

Past talks (Fall 2022)

November 28, 10:00-10:50a.m. (Pacific Time)

Title: On the Akemann-Ostrand property for q-Gaussian von Neumann algebras.

Speaker: Martijn Caspers, TU Delft

Abstract, Slides

November 21, 10:00-11:30a.m. (Pacific Time)

Title: Strongly convergent unitary representations of limit groups.

Speaker: Michael Magee, Durham University


November 14, 10:40a.m.-12p.m. (Pacific Time)

Title: The Brown measure of a sum of two free random variables, one of which is R-diagonal.

Speaker: Hari Bercovici, Indiana University Bloomington

Abstract, Slides

November 7, 10-11 a.m. (Pacific Time)

Title: Quantum graphs and colorings.

Speaker: Priyanga Ganesan, UC San Diego


October 31, 10-11:30 a.m. (Pacific Time)

Title: Insights into the Invariant Subspace Problem for compact perturbations of normal operators.

Speaker: Eva Gallardo-Gutierrez, Universidad Complutense de Madrid and ICMAT, visiting UC Berkeley


October 24, 10-11:30 a.m. (Pacific Time)

Title: Commutators in finite free probability.

Speaker: Jacob Campbell, University of Waterloo

Abstract, Slides

October 17, 10:10-11:40 a.m. (Pacific Time)

Title: Connections between free probability and model theory of tracial W*-algebras.

Speaker: David Jekel, UC San Diego


October 10, 10-11:30 a.m. (Pacific Time)

Title: Positive Maps and Entanglement in Real Hilbert Spaces.

Speaker: Vern Paulsen, University of Waterloo

Abstract, Slides

October 3, 10a.m.-12:00p.m. (Pacific Time)

Title: Strong convergence of tensor products of independent G.U.E. matrices.

Speaker: Serban Belinschi and Mireille Capitaine, University of Toulouse

Abstract, Slides Belinschi, Slides Capitaine

September 26, 10-11:30 a.m. (Pacific Time)

Title: Small at infinity compactification of a von Neumann algebra.

Speaker: Srivatsav Kunnawalkam Elayavalli, IPAM at UCLA


September 19, 10-11:50 a.m. (Pacific Time)

Title: Preservers of totally positive kernels and Polya frequency functions.

Speaker: Mihai Putinar, UCSB

Abstract, Slides

September 12, 10-11:30 a.m. (Pacific Time)

Title: Non-Commutative Stochastic Processes and Bi-Free Probability.

Speaker: Paul Skoufranis, York University

Abstract, Slides

August 22, 10-11:30 a.m. (Pacific Time)

Title: Cyclic Boolean and Monotone Independence.

Speaker: Octavio Arizmendi and Franz Lehner, CIMAT Guanajato and TU Graz

Abstract, Slides Arizmendi, Slides Lehner

Past talks (Spring 2022)

May 23, 10-11:30 a.m. (Pacific Time)

Title: De Finetti Theorems for the unitary dual group.

Speaker: Uwe Franz, Universite de Bourgogne Franche-Comte

Abstract, Slides

May 9, 10-11:30 a.m. (Pacific Time)

Title: The support of the free additive convolution of multi-cut measures.

Speaker: Philippe Moreillon, KTH Royal Institute of Technology

Abstract, Slides

May 2, 10a.m-12 p.m. (Pacific Time)

Title: Free entropy theory for types in tracial W*-algebras.

Speaker: David Jekel, UCSD

Abstract, Slides

April 25, 10-11 a.m. (Pacific Time)

Title: On the isomorphism class of q-Gaussian C*-algebras

Speaker: Mario Klisse, TU Delft

Abstract, Slides

April 18, 10-11 a.m. (Pacific Time)

Title: An inequality for non-microstates free entropy dimension for crossed products by finite abelian groups

Speaker: Dimitri Shlyakhtenko, UCLA

Abstract, Slides

April 11, 10-11 a.m. (Pacific Time)

Title: Components of meandric systems and the infinite noodle

Speaker: Valentin Feray, Institut Elie Cartan de Lorraine

Abstract, Slides

April 4, 10-11 a.m. (Pacific Time)

Title: A dual and a conjugate system for q-Gaussians for all q.

Speaker: Roland Speicher, Saarland University

Abstract, Slides

March 28, 10-11:30 a.m. (Pacific Time)

Title: The Infinitesimal Law of a Real Wishart Matrix

Speaker: James Mingo and Josue Vazquez-Becerra, Queen’s University and UAM Iztapalapa

Abstract, Slides Mingo, Slides Vazquez

March 14, 10-11 a.m. (Pacific Time)

Title: Repeated differentiation and free unitary Poisson processes

Speaker: Zakhar Kabluchko, University of Muenster

Abstract, Slides

February 28, 10-11:30 a.m. (Pacific Time)

Title: Spectral densities for spectral triples

Speaker: Jean-Luc Sauvageot, Institut Mathématique de Jussieu Rive Gauche

Abstract, Slides

February 21, 10a.m-12p.m. (Pacific Time)

Title: Analytic theory of higher order freeness

Speaker: Gaetan Borot and Elba Garcia-Failde, Humboldt University Berlin and Institut Math Jussieu Rive Gauche

Abstract, Slides Borot, Slides Garcia Failde

February 14, 10-11 a.m. (Pacific Time)

Title: Quantum exclusion process. Schroeder trees and free cumulants

Speaker: Philippe Biane, Institut Gaspard Monge, CNRS U. Paris-Est

Abstract, Slides

January 31, 10a.m.-12 p.m. (Pacific Time)

Title: Towards a classification of multi-faced independences

Speaker: Malte Gerhold, University of Greifswald.

Abstract, Slides

January 24 (2022), 9-10 a.m. (Pacific Time)

Title: Berry-Esseen Bounds for Operator-valued Free Limit Theorems

Speaker: Marwa Banna, New York University Abu Dhabi.

Abstract, Slides

Past talks (Fall 2021)

November 29, 10-11 a.m. (Pacific Time)

Title: Jacobians of neural networks and Free Probability.

Speaker: Reda Chhaibi, University Paul Sabatier Toulouse 3.

Abstract, Slides

November 22, 10-11 a.m. (Pacific Time)

Title: Normalized characters of symmetric groups and Boolean cumulants via Khovanov’s Heisenberg category.

Speaker: Shinji Koshida, Aalto University, Finland.

Abstract, Slides

November 15, 10a.m-12p.m (Pacific Time)

Title: A phase transition for tails of the free multiplicative convolution powers.

Speaker: Bartosz Kołodziejek and Kamil Szpojankowski, Warsaw University of Technology.

Abstract, Slides Szpojankowski, Slides Kołodziejek

November 8, 10-11:30 a.m (Pacific Time)

Title: Finite Free Cumulants: Multiplicative Convolutions, Genus Expansion, and Infinitesimal Distributions.

Speaker: Jorge Garza-Vargas, UC Berkeley.

Abstract, Slides

November 1, 10-11 a.m (Pacific Time)

Title: Almost commuting matrices and stability for product groups.

Speaker: Adrian Ioana, UCSD.

Abstract, Slides

October 25, 10-11 a.m (Pacific Time)

Title: The Matsumoto-Yor property in free probability.

Speaker: Marcin Swieca, Warsaw University of Technology.

Abstract, Slides

October 18, 2-3 p.m. (Pacific Time)

Title: Rationality for operators obtained from free semicircular elements.

Speaker: Akihiro Miyagawa, Kyoto University.

Abstract, Slides

October 11, 10-11 a.m. (Pacific Time)

Title: Fock Spaces with Nearest-Neighbor Coupling.

Speaker: Jacob Mashburn, Texas A&M University.


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, Slides Alexandru Nica, Slides Daniel Perales

September 20, 10-11 a.m. (Pacific Time)

Title: Strong 1-boundedness for von Neumann algebras with property T.

Speaker: Srivatsav Kunnawalkam Elayavalli, Vanderbilt University.


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

Past talks (Summer 2021)

June 30, 10-12 a.m. (Pacific Time)

Title: Duality for optimal couplings in free probability.

Speakers: 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.


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

Past talks (Spring 2021)

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.


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.


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.


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.


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.


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


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


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