Property (QT) for 3-manifold groups
According to Bestvina-Bromberg-Fujiwara, a finitely generated group is said to have property (QT) if it acts isometrically on a finite product of quasi-trees so that orbital maps are quasi-isometric embeddings. We prove that the fundamental group $\pi_1(M)$ of a compact, connected, orientable 3-manifold $M$ has property (QT) if and only if no summand in the sphere-disc decomposition of $M$ supports either Sol or Nil geometry. In particular, all compact, orientable, irreducible 3-manifold groups with nontrivial torus decomposition and not supporting Sol geometry have property (QT). In the course of our study, we establish property (QT) for the class of Croke-Kleiner admissible groups and of relatively hyperbolic groups under natural assumptions has property (QT).
Authors
- Suzhen Han
- Hoang Thanh Nguyen (ORCID: https://orcid.org/0000-0001-6065-4135)
- Wenyuan Yang (ORCID: https://orcid.org/0000-0003-0046-5994)
Institutions
- FPT University (VN)
- Hunan University (CN)
- Peking University (CN)
- University of Science and Technology - The University of Da Nang (VN)
- Peking University International Hospital (CN)
Publication Details
- Journal
- Algebraic & Geometric Topology
- Published
- 2025-03-05
- DOI
- https://doi.org/10.2140/agt.2025.25.107
- Citations
- 2
- Primary Topic
- Geometric and Algebraic Topology
- Type
- article
- Field-Weighted Citation Impact
- 8.18
Funders
- National Natural Science Foundation of China