Counting cycles in labeled graphs: The nonpositive immersion property for one-relator groups
Group Theory
2015-08-26 v2
Abstract
We prove a rank 1 version of the Hanna Neumann Theorem. This shows that every one-relator 2-complex without torsion has the nonpositive immersion property. The proof generalizes to staggered and reducible 2-complexes.
Keywords
Cite
@article{arxiv.1410.2579,
title = {Counting cycles in labeled graphs: The nonpositive immersion property for one-relator groups},
author = {Joseph Helfer and Daniel T. Wise},
journal= {arXiv preprint arXiv:1410.2579},
year = {2015}
}
Comments
12 pages, 2 figures