c*-algebra mf property 1graph-product semicirculars 1q-gaussian algebras 1random matrix models 1strong convergence 1ultraproduct methods 1
From the 1 of 3 linked papers with an AI index.
3 papers
math.OA2026
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…
math.OA2026
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 .…
math.OA2026
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…