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

collaborators

Showing 2025Show all

3 papers · 1 filter

math.FA2025

On the best constants of Schur multipliers of higher order divided difference functions

Martijn Caspers, Jesse Reimann

Let $f \in C^{n} (R)$ be such that $∥ f^{(n)} ∥_{\infty} < \infty$ . Let $f^{[n]} \in C (R^{n + 1})$ be the $n$ th order divided difference. A special case of our m…

math.FA2025

Higher order perturbation estimates in quasi-Banach Schatten spaces through wavelets

Martijn Caspers, Emiel Huisman

Let $n \in N_{\geq 1}$ . Let $1 \leq p_{1}, \dots, p_{n} < \infty$ and set the Hölder combination $p := (p_{1}; \dots; p_{n}) := (\sum_{j = 1}^{n} p_{j}^{- 1})^{- 1}$ . Assu…

math.OA2025

Internal graphs of graph products of hyperfinite II $_{1}$ -factors

Martijn Caspers, Enli Chen

In this paper, we show that for a graph $Γ$ from a class named H-rigid graphs, its subgraph $Int (Γ)$ , named the internal graph of $Γ$ , is an isomorphism invariant of the grap…

On the best constants of Schur multipliers of higher order divided difference functions

Higher order perturbation estimates in quasi-Banach Schatten spaces through wavelets

Internal graphs of graph products of hyperfinite II1​-factors

Internal graphs of graph products of hyperfinite II $_{1}$ -factors