From the 1 of 6 linked papers with an AI index.
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Strongly convergent matrix models for -Gaussian algebras
Martijn Caspers, Enli Chen
The paper builds finite‑dimensional random matrix models that strongly converge to finite q‑Gaussian families for |q| < √2 − 1, using graph‑product semicircular elements, ultraprod…
Rigid Graph Products
Matthijs Borst, Martijn Caspers, Enli Chen
We prove rigidity properties for von Neumann algebraic graph products. We introduce the notion of rigid graphs and define a class of II-factors named .…
Internal graphs of graph products of hyperfinite II-factors
Martijn Caspers, Enli Chen
In this paper, we show that for a graph from a class named H-rigid graphs, its subgraph , named the internal graph of , is an isomorphism invariant of the g…
Bimodule coefficients, Riesz transforms on Coxeter groups and strong solidity
Matthijs Borst, Martijn Caspers, Mateusz Wasilewski
In deformation-rigidity theory it is often important to know whether certain bimodules are weakly contained in the coarse bimodule. Consider a bimodule over the group algebra $…
Classification of right-angled Coxeter groups with a strongly solid von Neumann algebra
Matthijs Borst, Martijn Caspers
Let be a finitely generated right-angled Coxeter group with group von Neumann algebra . We prove the following dichotomy: either is strongly so…