Lifting couplings in Wasserstein spaces
Perrone, P
Compositionality
volume Volume 7 (2025)
(07 May 2025)
Wed, 25 Jun 2025
15:00
15:00
Boundary cubulation is a pathway to residual finiteness
Thomas Ng
(Brandeis University)
Abstract
Actions on CAT(0) cube complexes are powerful geometric tool for both algebraically decomposing groups and establishing subgroup separability results. I will describe boundaries associated to hyperbolic and relatively hyperbolic groups. With a focus on (quotients of) free products, I will discuss variations on a boundary criteria of Bergeron—Wise for exhibiting cocompact actions on CAT(0) cube complexes. I will explain some ideas on how to use these tools to show that most (small-cancellation or random density) quotients of free products preserve residual finiteness. This is based on multiple joint works with subsets of Einstein, Krishna MS, Montee, and Steenbock.
Optimal Execution and Speculation With Trade Signals
Bank, P
Cartea, A
Koerber, L
Finance and Stochastics
Diffusive dynamics and electrochemical regulation of weak polyelectrolytes across liquid interfaces
Celora, G
Blossey, R
Muench, A
Wagner, B
Physical Review Research
Are you an academic, researcher, or PhD candidate in Medical Sciences or MPLS aiming to share your research with a global audience? We’re offering two excellent opportunities to learn about writing for The Conversation, publisher of research-based news and analysis worldwide.
Session 1: Introduction to Writing for The Conversation
An online staff briefing on proposals for a temporary congestion charge in Oxford have been arranged with the County Council. This will take place at 11.30am-12.30pm on Monday 30 June. Colleagues interested in the proposals and their potential impact are welcome to join using the Teams links provided.