Jonas Der'e

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math.GR2026

Automorphisms and monomorphisms of direct products of virtually solvable minimax groups

Jonas DerÃ©, Ken Vandermeersch

This paper studies automorphisms and monomorphisms of direct products $I^ = I^_{1} \times \dots \times I^_{r}$ of finitely generated virtually solvable minimax groups, a class containing al…

math.GR2026

Residual Finiteness Growth in Virtually Nilpotent Groups

Jonas DerÃ©, Joren Matthys, Lukas Vandeputte

The residual finiteness growth $RF_{G} : N \to N$ of a finitely generated group $G$ is a function that gives the smallest value of the index $[G : N]$ with $N$ …

math.GR2025

Residual Finiteness Growth in Minimax Groups

If $g \in G$ is a non-trivial element in a residually finite group, then there exists by definition a finite group $Q$ and a homomorphism $I ¨ : G \to Q$ such that $I ¨ (g) \neq = e$ . The…