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Our campus Welcome to the homepage for the Eighteenth Annual Spring Institute Noncommutative Geometry and Operator Algebras

NCGOA 2023 will take place at Vanderbilt University from May 8 to May 11, 2023. This year’s topic is von Neumann Algebras. The Eighteenth Annual Spring Institute on Noncommutative Geometry and Operator Algebras is a combination of spring school and international conference. The conference will consist of a number of invited research talks and short contributions. We strongly encourage students and postdocs to attend this conference. Please read the section on financial aid below regarding information on how to apply for financial support.

Invited Speakers

Speaker Affiliation Title
Bat-Od Battseren RIMS, Kyoto University Von Neumann equivalence and Md type approximation properties
Quan Chen Ohio State University A categorical Connes’ χ(M)
Ionut Chifan University of Iowa Wreath-like product groups and rigidity aspects of their von Neumann algebras
Changying Ding Vanderbilt University Biexact von Neumann algebras
Ben Hayes University of Virginia Applications of free entropy to the study of tracial von Neumann algebras
Roberto Hernandez Palomares University of Waterloo Discrete inclusions of C*-algebras
Peter Huston Vanderbilt University Skein modules, dome algebras, and string-net models for topological order
Corey Jones NC State University Quantum cellular automata on nets of algebras
Kate Juschenko University of Texas at Austin Topological amenability and Kesten’s criteria
Mehrdad Kalantar University of Houston Generalized complexification for operator algebras and operator spaces
Srivatsav Kunnawalkam Elayavalli IPAM, UCLA On the story of matrices of high finite order: Then (1942) and now (2022)
Brent Nelson Michigan State University Von Neumann dimension for faithful normal strictly semifinite weights
Emily Peters Loyola University Chicago Categorifying connections
Eric Rowell Texas A&M University The loop braid group and charge conserving Yang–Baxter operators
Thomas Sinclair Purdue University A notion of index for finite-dimensional operator systems
Noah Snyder University of Indiana Oligomorphic groups, measures, and the Delannoy Category
Hui Tan UCSD On existentially closed II1 factors
Daniel Wallick Ohio State University Local topological order and boundary algebras
Hans Wenzl UCSD Module categories and subfactors from quantum groups
Feng Xu UC Riverside Rigorous results about entropies in QFT
Jun Yang Harvard University Limit multiplicities and von Neumann dimensions


All participants, including invited speakers, are asked to register online. All questions should be directed to If you intend to request support, please read the section Reimbursement Policy.

Registration Link.

Financial Aid

Financial support will be available to (partially) fund graduate students, postdoctoral researchers and other participants without grant support. We encourage those of you who are asking for support to share accommodations. If you plan to apply for funding, please fill out the “Request Financial Support” portion of the registration form. International participants need to fill out a Business Visitor Questionnaire. Please submit your request for financial support by March 15, 2023. Late applications will be considered as long as financial support is available. Note that we are unable to provide any support in advance.


Funding for the Eighteenth Annual Spring Institute on Noncommutative Geometry and Operator Algebras is provided by the National Science Foundation and both the College of Arts & Science and the Department of Mathematics Shanks Endowment at Vanderbilt University. We are grateful for their support.

Organizing Committee

Dietmar Bisch, Vanderbilt University
Jesse Peterson, Vanderbilt University