English

Graphs, free groups and the Hanna Neumann conjecture

Group Theory 2008-12-15 v2

Abstract

A new bound for the rank of the intersection of finitely generated subgroups of a free group is given, formulated in topological terms, and very much in the spirit of Stallings. The bound is a contribution to (although unfortunately not a solution of) the strengthened Hanna Neumann conjecture.

Keywords

Cite

@article{arxiv.math/0701214,
  title  = {Graphs, free groups and the Hanna Neumann conjecture},
  author = {Brent Everitt},
  journal= {arXiv preprint arXiv:math/0701214},
  year   = {2008}
}

Comments

J. Group Theory (to appear)

R2 v1 2026-07-22T17:49:00.817Z