English

Representing distance-hereditary graphs with multi-rooted trees

Combinatorics 2025-02-13 v1

Abstract

Arboreal networks are a generalization of rooted trees, defined by keeping the tree-like structure, but dropping the requirement for a single root. Just as the class of cographs is precisely the class of undirected graphs that can be explained by a labelled rooted tree (T,t), we show that the class of distance-hereditary graphs is precisely the class of undirected graphs that can be explained by a labelled arboreal network (N,t).

Keywords

Cite

@article{arxiv.2502.08251,
  title  = {Representing distance-hereditary graphs with multi-rooted trees},
  author = {Guillaume E. Scholz},
  journal= {arXiv preprint arXiv:2502.08251},
  year   = {2025}
}

Comments

25 pages, 9 figures

R2 v1 2026-06-28T21:41:25.695Z