Ken Vandermeersch

collaborators

4 papers

math.GR2026

Nilpotent groups with Dehn function $n^{2} lo g n$

Ken Vandermeersch

We exhibit 2-step Carnot groups with Dehn function $n^{2} lo g n$ , sharpening Wenger's superquadratic lower bound for these groups. Some of these groups admit lattices, yielding fini…

math-ph2026

Near-Tsirelson Bell-CHSH Violations in Quantum Field Theory via Carleman and Hankel Operators

David Dudal, Ken Vandermeersch

We study Bell-Clauser-Horne-Shimony-Holt (Bell-CHSH) violations in the vacuum state of free spinor fields in $(1 + 1)$ -dimensional Minkowski spacetime. We construct explicit smooth c…

math.GR2026

Automorphisms and monomorphisms of direct products of virtually solvable minimax groups

Jonas Deré, Ken Vandermeersch

This paper studies automorphisms and monomorphisms of direct products $Γ = Γ_{1} \times \dots \times Γ_{r}$ of finitely generated virtually solvable minimax groups, a class containing all v…

math-ph2024

Further Evidence for Near-Tsirelson Bell-CHSH Violations in Quantum Field Theory via Haar Wavelets