Higher-rank GBS groups: non-positive curvature and biautomaticity
Group Theory
2025-12-04 v3
Abstract
We characterise when a rank generalised Baumslag-Solitar group is CAT(0) and when it is biautomatic.
Cite
@article{arxiv.2502.06974,
title = {Higher-rank GBS groups: non-positive curvature and biautomaticity},
author = {Sam Shepherd and Motiejus Valiunas},
journal= {arXiv preprint arXiv:2502.06974},
year = {2025}
}
Comments
7 pages, v2: Some minor changes in the introduction; v3: Some minor changes according to the referee's comments. To appear in Geometriae Dedicata