English

Quasi-isometric rigidity for a product of lattices

Geometric Topology 2025-12-11 v1 Group Theory

Abstract

We demonstrate quasi-isometric rigidity for the product of a non-uniform rank one lattice and a nilpotent lattice. Specifically, we show that any finitely-generated group quasi-isometric to such a product is, up to finite noise, an extension of a non-uniform rank one lattice by a nilpotent lattice. Furthermore, we show under extra conditions that this extension is nilcentral, a notion which generalizes central extensions to extensions by a nilpotent group.

Keywords

Cite

@article{arxiv.2512.09782,
  title  = {Quasi-isometric rigidity for a product of lattices},
  author = {Josiah Oh},
  journal= {arXiv preprint arXiv:2512.09782},
  year   = {2025}
}