Workshop on Operator Algebras and Applications: Groups and Group Actions

October 2 - 6, 2023, The Fields Institute

Location: Fields Institute, Room 230

Description

Plenary Speakers

Tristan Bice, Institute of Mathematics, Czech Academy of Sciences
Chris Bruce, University of Glasgow
Ionut Chifan, University of Iowa
Robin Deeley, University of Colorado Boulder
Changying Ding, University of California, Los Angeles
Anna Duwenig, Katholieke Universiteit Leuven
Benjamin Hayes, University of Virginia
Bhishan Jacelon, Institute of Mathematics, Czech Academy of Sciences
Hanfeng Li, SUNY at Buffalo
Narutaka Ozawa, Kyoto University
Gregory Patchell, University of California, San Diego
Pawel Sarkowicz, University of Waterloo
Camila Sehnem, University of Waterloo
Tatiana Shulman, University of Gothenburg
Hui Tan, University of California, San Diego
Dan Ursu, University of Münster
Itamar Vigdorovich, Weizmann Institute of Science
Michael Whittaker, University of Glasgow
Dilian Yang, University of Windsor
Andy Zucker, University of Waterloo

You can find all talk recordings here: https://www.youtube.com/playlist?list=PLArBKNfJxuumtl6oe33TD9_NPUMi8aXc5

Schedule

Monday, October 2nd, 2023
09:55 to 10:00	Opening Remarks Deirdre Haskell, The Fields Institute
10:00 to 10:50	Classification of embeddings for a family of property (T) group factors Ionut Chifan, University of Iowa
10:50 to 11:20	Coffee Break
11:20 to 12:10	Poincaré duality of self-similar actions Mike Whittaker, University of Glasgow
12:10 to 12:15	Group Photos
12:15 to 14:00	Lunch Break (On Your Own)
14:00 to 14:50	Unitary groups, K-theory and traces Pawel Sarkowicz, University of Waterloo
14:50 to 15:10	Coffee Break
15:10 to 16:00	Bundles vs Cosheaves Tristan Bice, Institute of Mathematics, Czech Academy of Sciences
16:00 to 17:00	[Distinguished Lecture Series: Tatiana Shulman] Lecture 01 \| Stability and lifting properties for C*-algebras and groups Tatiana Shulman, University of Gothenburg
17:00 to 18:30	Reception \| Distinguished Lecture Series: Tatiana Shulman

Tuesday, October 3rd, 2023
10:00 to 10:50	Local entropy theory for induced actions on probability measure spaces Hanfeng Li, SUNY at Buffalo
10:50 to 11:20	Coffee Break
11:20 to 12:10	On sofic approximations of non amenable groups Benjamin Hayes, University of Virginia
12:10 to 14:00	Lunch Break (On Your Own)
14:00 to 14:50	Ultracoproducts of $G$-flows Andy Zucker, University of Waterloo
14:50 to 15:10	Coffee Break
15:10 to 16:00	Quantum metric Choquet simplices Bhishan Jacelon, Institute of Mathematics of the Czech Academy of Sciences
16:00 to 17:00	[Distinguished Lecture Series: Tatiana Shulman] Lecture 02 \| Stability and lifting properties for C*-algebras and groups Tatiana Shulman, University of Gothenburg

Wednesday, October 4th, 2023
10:00 to 10:50	A counterexample to the HK-conjecture that is principal Robin Deeley, University of Colorado Boulder
10:50 to 11:20	Coffee Break
11:20 to 12:10	Toeplitz algebras of semigroups and their boundary quotients, with examples Camila Sehnem, University of Waterloo

Thursday, October 5th, 2023
10:00 to 10:50	Around amenability for the unitary groups of nuclear C*-algebras Narutaka Ozawa, Kyoto University
10:50 to 11:20	Coffee Break
11:20 to 12:10	Biexact von Neumann Algebras Changying Ding, University of California, Los Angeles
12:10 to 14:00	Lunch Break (On Your Own)
14:00 to 14:50	Rigidity results for group von Neumann algebras with diffuse center Hui Tan, University of California, San Diego
14:50 to 15:10	Coffee Break
15:10 to 16:00	Primeness of Generalized Wreath Product von Neumann Algebras Gregory Patchell, University of California, San Diego
16:00 to 17:00	[Distinguished Lecture Series: Tatiana Shulman] Lecture 03 \| Stability and lifting properties for C*-algebras and groups Tatiana Shulman, University of Gothenburg

Friday, October 6th, 2023
10:00 to 10:50	Normal coactions extend to the C*-envelope and applications to operator algebras from left cancellative small categories Chris Bruce, University of Glasgow
10:50 to 11:20	Coffee Break
11:20 to 12:10	Smooth Cartan subalgebras and Lie groupoid twists Anna Duwenig, Katholieke Universiteit Leuven
12:10 to 14:00	Lunch Break (On Your Own)
14:00 to 14:50	Self-similar monoids and their C*-algebras Dilian Yang, University of Windsor
14:50 to 15:20	Coffee Break
15:20 to 16:10	Simplicity of crossed products by FC-hypercentral groups Dan Ursu, University of Münster
16:10 to 17:00	Stability of amenable groups: uncountably many examples and connections to dynamical systems Itamar Vigdorovich, Weizmann Institute of Science

Registered Participants

Name	Affiliation
Toluwalope Adeti-Toyo	University of Ibadan
Meltem Altun Özarslan	Hacettepe University
Zahra Amiri	Ferdowsi University of Mashhad
Tattwamasi Amrutam	Ben Gurion University of the Negev
Chimere Anabanti	University of pretoria
Benjamin Anderson-Sackaney	University of Caen
Anshu Anshu	The Fields Institute
Dawn Archey	University of Detroit Mercy
Leandro Arcos Roman	Amherst College
Juan Felipe Ariza Mejía	University of Iowa
M. Ali Asadi-Vasfi	University of Toronto
Ahmed Ashraf	University of Toronto
Are Austad	University of Southern Denmark
Uri Bader	Weizmann Institute of Science
Aranya Bal	Indian Statistical Institute, Kolkata
Jashan Bal	University of Waterloo
Daniel Beltita	Institute of Mathematics "Simion Stoilow" of the Romanian Academy
Shivam Bhatt	University of Toronto
Tristan Bice	Institute of Mathematics, Czech Academy of Sciences
Ben Bouwen	University of Southern Denmark
Michael Brannan	University of Waterloo
Thomas Bray	University of Waterloo
Kevin Aguyar Brix	University of Glasgow
Chris Bruce	University of Glasgow
Laurent Cantier	Czech Academy of Sciences
Jorge Castillejos	Universidad Nacional Autónoma de México
Omar Cayley	University of Ottawa
Arianna Cecco	University of Houston
Prasoon Chakraborty	Lomonosov Moscow State University
Soham Chakraborty	Katholieke Universiteit Leuven
Tsz Kin Chan	Hong Kong University of Science and Technology
Yujia Cheng	University of Toronto
Ionut Chifan	University of Iowa
Seongjun Choi
Arghya Chongdar	Indian Statistical Institute, Bangalore
Kenneth Davidson	University of Waterloo
Andrew Dean	Lakehead University
Patrick DeBonis	Purdue University
Robin Deeley	University of Colorado Boulder
Rolando de Santiago	Purdue University
Repana Devendra	IIT Madras
Changying Ding	University of California, Los Angeles
Shanna Dobson	University of California, Riverside
Anna Duwenig	Katholieke Universiteit Leuven
SAURABH DHAR DWIVEDI	University of Delhi
Marta Eiver
George Elliott	University of Toronto
Ulrik Enstad	University of Oslo
Samuel Evington	University of Muenster
Ilijas Farah	York University
Felipe Flores	University of Virginia
Marzieh Forough	Czech Technical University in Prague
Michael Francis	Western University
Stefan Frunza	University of Waterloo
Xuanlong Fu	The Fields Institute
Eusebio Gardella	Chalmers University of Technology and University of Gothenburg
Dylan Gawlak	Queen's University
Dimitris Gerontogiannis	Leiden University
Mainak Ghosh	Indian Statistical Institute, Kolkata
Thierry Giordano	University of Ottawa
Sergio Giron Pacheco	University of Oxford
Pouyan Goudarzi	York University
Jefrey Halliwell	University of Sri Jayewardenepura
Benjamin Hayes	University of Virginia
Roberto Hernández Palomares	University of Waterloo
Ilan Hirshberg	Ben-Gurion University of the Negev
Shanshan Hua	University of Oxford
Fei Hu	Nanjing University
Jeremy Hume	University of Glasgow
Rong Hu	UPEI
Cristian Ivanescu	MacEwan University
Bhishan Jacelon	Institute of Mathematics of the Czech Academy of Sciences
Manan Jain	Jamia Millia Islamia
Azhar Javed	Lahore University of Management Sciences (LUMS)
David Jekel	The Fields Institute
Farangis Johari	University of Sao Paulo
Prem Kar	Technical University of Denmark
Ajay Kumar Karri	Texas A&M University
Elias Katsoulis	East Carolina University
Aaron Kettner	Institute of Mathematics of the Czech Academy of Sciences
Fatemeh Khosravi	IPM and University of Isfahan
Hanse Kim
Vishnu Kizhakkeadathu Sankarankutty	University of Münster
Olaf Kołodziejski	University of Gdańsk
Grigorios Kopsacheilis	University of Münster
Julian Kranz	University of Oxford
Larissa Kroell	University of Waterloo
Manish Kumar	Institute of Mathematics, PAN
Marcelo Laca	University of Victoria
Arvin Lamando	University of Vienna
Joswin Nilesh Lasrado	Indian Institute of Technology Palakkad
Joshua Lau	University of Toronto
Victor Liao	University of Waterloo
Hanfeng Li	SUNY at Buffalo
Kang Li	Friedrich-Alexander-Universität Erlangen-Nürnberg
Ying-Fen Lin	Queen's University Belfast
Ayan Mahalanobis	IISER Pune
Gahin Maiti	Indian Statistical Institute, Bangalore
Malay Mandal	Chennai Mathematical Institute
Aareyan Manzoor	University of Waterloo
Tzah Yitzhak Marom	Tel-Aviv University
AASHISH KUMAR MAURYA	IIT Goa
Xin Ma	The Fields Institute
Kathryn McCormick	California State University, Long Beach
Tao Mei	Baylor University
Alistair Miller	University of Southern Denmark
James Mingo	Queen's University
Mohammad Sadegh Mojahedi Moakhar	Tarbiat Modares University
Mehdi Moradi	The Fields Institute
Robert Neagu	University of Oxford
Sarada Anoushka Nerella Kameswari Umamaheshwari	University of Colorado Boulder
Ryszard Nest	Copenhagen University
Zhuang Niu	University of Wyoming
Rachael Norton	St. Olaf College
Onur Oktay	Usak University
Blessing Oni	The Fields Institute
Narutaka Ozawa	Kyoto University
Matteo Pagliero	Katholieke Universiteit Leuven
Leonard Paleta	University of Southern Mindanao
Mathias Palmstrøm	NTNU
Nikolaos Panagopoulos	University of Houston
Tagakou fonkou Parfait karol	University of Yaoundé 1
Gregory Patchell	University of California, San Diego
Anurag Patel	Banaras Hindu University
Jun Peng	SUNY at Buffalo
Francesc Perera	Universitat Autònoma de Barcelona
Spyridon Petrakos	WWU Münster
N. Christopher Phillips	University of Oregon
Jennifer Pi	University of California, Irvine
Dhanusshya Raghu	RIASM, University of Madras
Timothy Rainone	Occidental College
Sarah Reznikoff	Virginia Tech
Rahul Kumar R	Indian Institute of Technology, Kanpur
Amin Saeidi	University of Limpopo
Gurninder Sandhu	Patel Memorial National College
Pawel Sarkowicz	University of Waterloo
Anamaria Savu	University of Alberta
Christopher Schafhauser	University of Nebraska-Lincoln
Tyler Schulz	University of Victoria
Gaute Schwartz	University of Oslo
Erik Séguin	University of Waterloo
Camila Sehnem	University of Waterloo
Apurva Seth	Ben-Gurion University of the Negev
Austin Shiner	University of Waterloo
Tatiana Shulman	University of Gothenburg
Ionut Simon	University POLITEHNICA of Bucharest
Paul Skoufranis	York University
Ben Sorowen	Moi University
Charles Starling	Carleton University
Wai Shing Tang
Hui Tan	University of California, San Diego
Hannes Thiel	Chalmers University of Technology and University of Gothenburg
Aaron Tikuisis	University of Ottawa
Arthur Troupel	CNRS - Université Paris Cité - IMJ-PRG
Dan Ursu	University of Münster
Robert Valente	University of Windsor
Yannic Vargas	Institut für Diskrete Mathematik
Abhijeet Vats	Humboldt University of Berlin
Ignacio Vergara	Universidad de Santiago de Chile
Itamar Vigdorovich	Weizmann Institute of Science
Eduard Vilalta	The Fields Institute
Maria Grazia Viola	Lakehead University
Mike Whittaker	University of Glasgow
Matthew Wiersma	University of Winnipeg
Lise Wouters	Katholieke Universiteit Leuven
Dilian Yang	University of Windsor
Evan Young	University of Waterloo
Joachim Zacharias	University of Glasgow
Shuheng Zhou	University of California, Riverside
Tianyi Zhou	University of Ottawa
Jennifer Zhu	University of Waterloo
Andy Zucker	University of Waterloo