Adapted almost invariant sets and splittings of groups
Geometric Topology
2025-02-04 v1 Group Theory
Abstract
We prove relative versions of many earlier results about almost invariant sets and splittings of groups. In particular, we prove a relative version of the algebraic torus theorem, and we prove the existence and uniqueness of relative versions of algebraic regular neighbourhoods and of JSJ decompositions.
Keywords
Cite
@article{arxiv.2502.00256,
title = {Adapted almost invariant sets and splittings of groups},
author = {Peter Scott and Gadde Swarup},
journal= {arXiv preprint arXiv:2502.00256},
year = {2025}
}