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Schedule for: 24w5174 - Group Operator Algebras: Classification, Structure and Rigidity

Beginning on Sunday, September 22 and ending Friday September 27, 2024

All times in Banff, Alberta time, MDT (UTC-6).

Sunday, September 22
09:00 - 10:00 placeholder (Online)
16:00 - 17:30 Check-in begins at 16:00 on Sunday and is open 24 hours (Front Desk - Professional Development Centre)
17:30 - 19:30 Dinner (Vistas Dining Room)
20:00 - 22:00 Informal gathering (Other (See Description))
Monday, September 23
07:00 - 08:45 Breakfast (Vistas Dining Room)
08:45 - 09:00 Introduction and Welcome by BIRS Staff (TCPL 201)
09:00 - 09:50 Survey talks by Ionut Chifan, Cyril Houdayer, Matt Kennedy and Adrian Ioana (TCPL 201)
09:00 - 10:00 Adrian Ioana: Survey talks by Ionut Chifan, Cyril Houdayer, Matt Kennedy and Adrian Ioana ( (TCPL 201)
10:00 - 10:30 Coffee Break (TCPL Foyer)
10:30 - 11:20 Stefaan Vaes: W^*-superrigidity for cocycle twisted group von Neumann algebras (TCPL 201)
11:30 - 13:30 Lunch (Vistas Dining Room)
13:30 - 13:50 Group Photo (TCPL Foyer)
14:00 - 14:50 Narutaka Ozawa: Embeddings of matrix algebras into uniform Roe algebras and quasi-local algebras (TCPL 201)
15:00 - 15:30 Coffee Break (TCPL Foyer)
15:30 - 15:35 Milan Donvil: W*-superrigid groups with infinite center (TCPL 201)
15:35 - 15:40 Adriana Fernández Quero: Rigidity results for group von Neumann algebras with diffuse center (TCPL 201)
15:40 - 15:45 Shuoxing Zhou: Noncommutative topological boundaries and amenable invariant random intermediate subalgebras (TCPL 201)
15:45 - 15:50 Larissa Kroell: The Ideal Intersection Property for Partial Actions (TCPL 201)
15:50 - 15:55 Gregory Patchell: Sequential Commutation in von Neumann Algebras (TCPL 201)
16:10 - 17:00 Problem session (TCPL 201)
16:10 - 17:30 Adrian Ioana: Discussions (TCPL 201)
17:00 - 17:30 Discussion (TCPL 201)
17:30 - 19:30 Dinner (Vistas Dining Room)
Tuesday, September 24
07:00 - 08:45 Breakfast (Vistas Dining Room)
09:00 - 09:50 Kristin Courtney: Building Completely Positive Inductive Sequences (TCPL 201)
10:00 - 10:30 Coffee Break (TCPL Foyer)
10:30 - 11:20 Marius Dadarlat: Group stability with respect to the operator norm (TCPL 201)
11:30 - 13:00 Lunch (Vistas Dining Room)
13:30 - 14:20 Jesse Peterson: A new proof that there is no separable universal II_1 factor (TCPL 201)
14:30 - 14:50 Dan Ursu: Intermediate subalgebras for reduced crossed products of discrete groups (TCPL 201)
15:00 - 15:30 Coffee Break (TCPL Foyer)
15:30 - 16:20 Arie Levit: Characters and Hilbert-Schmidt stability (TCPL 201)
16:30 - 17:20 Yair Hartman: Furstenberg's Boundary Theories: Construct one, get one free. (TCPL 201)
17:30 - 19:30 Dinner (Vistas Dining Room)
Wednesday, September 25
07:00 - 08:45 Breakfast (Vistas Dining Room)
09:00 - 09:50 Tianyi Zheng: Contractions in self-similar groups (TCPL 201)
10:00 - 10:30 Coffee Break (TCPL Foyer)
10:30 - 10:50 Hui Tan: Connes Rigidity Conjecture for Groups with Infinite Center (TCPL 201)
11:00 - 11:50 Caleb Eckhardt: Hilbert-Schmidt Stability of some amenable groups (TCPL 201)
11:30 - 13:00 Lunch (Vistas Dining Room)
13:30 - 17:30 Free Afternoon (Banff National Park)
17:30 - 19:30 Dinner (Vistas Dining Room)
Thursday, September 26
07:00 - 08:45 Breakfast (Vistas Dining Room)
09:00 - 09:50 Denis Osin: Classifying group actions on hyperbolic spaces (TCPL 201)
10:00 - 10:30 Coffee Break (TCPL Foyer)
10:30 - 11:20 Shirly Geffen: Essential freeness, allostery, and classifiability of crossed product C*-algebras. (TCPL 201)
11:30 - 13:00 Lunch (Vistas Dining Room)
13:30 - 14:20 Karen Strung: C*-algebras associated to homeomorphisms and vector bundles (TCPL 201)
14:30 - 14:35 Emilie Elkiær: Rigidity for groups and algebras acting on Banach spaces (TCPL 201)
14:35 - 14:40 David Gao: Constructing II_1 factors with one unitary conjugacy orbits and certain properties of these factors. (TCPL 201)
14:40 - 14:45 Ryoya Arimoto: Simplicity of crossed products of the actions of totally disconnected locally compact groups on their boundaries (TCPL 201)
14:45 - 14:50 Juan Felipe Ariza Mejia: Rigidity for W^*-McDuff groups (TCPL 201)
14:50 - 14:55 Alon Dogon: Relating Hilbert--Schmidt stability and character rigidity of lattices in products. (TCPL 201)
14:55 - 15:00 Koichi Oyakawa: Geometry and dynamics of the extension graph of graph product of groups (TCPL 201)
15:00 - 15:30 Coffee Break (TCPL Foyer)
15:30 - 16:20 Yuhei Suzuki: Crossed product splitting of intermediate operator algebras via 2-cocycles (TCPL 201)
16:30 - 17:20 William Slofstra: Positivity is undecidable in products of free algebras (TCPL 201)
17:30 - 19:30 Dinner (Vistas Dining Room)
Friday, September 27
07:00 - 08:45 Breakfast (Vistas Dining Room)
09:00 - 09:20 Camila Sehnem: The ideal intersection property for noncommutative C*-dynamical systems (TCPL 201)
09:30 - 09:50 Itamar Vigdorovich: Character Stiffness (TCPL 201)
10:00 - 10:30 Coffee Break (TCPL Foyer)
10:30 - 11:00 Checkout by 11AM (Front Desk - Professional Development Centre)
10:30 - 10:50 Changying Ding: On Cartan subalgebras of II_1 factors arising from Bernoulli actions of weakly amenable groups (TCPL 201)
11:00 - 11:20 Forrest Glebe: Almost Representations of Groups that Realize Obstructions in Higher Cohomology (TCPL 201)
12:00 - 13:30 Lunch from 11:30 to 13:30 (Vistas Dining Room)