Embeddings of mapping tori for end-periodic graph maps
Geometric Topology
2025-11-20 v1 Dynamical Systems
Abstract
End-periodic homotopy equivalences of infinite, locally finite graphs serve as dimension-one analogs of the end-periodic automorphisms traditionally defined on infinite-type surfaces. We demonstrate that if is an infinite graph with finitely many ends, and is end-periodic, then its mapping torus admits a flowline-preserving homotopy equivalence with a finite 2-complex. With additional hypotheses on , this compactified mapping torus subsequently embeds in the mapping torus of a homotopy equivalence on a finite-rank graph via a -injective, flow-preserving map. We prove that every mapping class of arising from an end-periodic homotopy equivalence contains a representative whose mapping torus realizes such an embedding.
Cite
@article{arxiv.2511.14976,
title = {Embeddings of mapping tori for end-periodic graph maps},
author = {Adam R. Smith},
journal= {arXiv preprint arXiv:2511.14976},
year = {2025}
}
Comments
37 pages, 13 figures