M. Caspers

activity

20152026

most citedAbsence of Cartan subalgebras for right-angled Hecke von Neumann algebras

9 citations · 19 across the 22 of their papers we have counts for

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Showing 2016Show all

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math.OA2016

Weight theory for ultraproducts

Martijn Caspers

For a family of von Neumann algebras $M_{j}$ equipped with normal weights $φ_{j}$ we define the ultraproduct weight $(φ_{j})_{ω}$ on the Groh--Raynaud ultrapower $\prod_{j, ω} \m…

math.OA2016★ 9 cited

Absence of Cartan subalgebras for right-angled Hecke von Neumann algebras

Martijn Caspers

For a right-angled Coxeter system $(W, S)$ and $q > 0$ , let $M_{q}$ be the associated Hecke von Neumann algebra, which is generated by self-adjoint operators $T_{s}, s \in S$ sa…