English

Decomposition into two trees with orientation constraints

Combinatorics 2013-04-15 v1

Abstract

We prove that deciding whether the edge set of a graph can be partitionned into two spanning trees with orientation constraints is NP-complete. If P \neq NP then this disproves a conjecture of Recski.

Keywords

Cite

@article{arxiv.1304.3613,
  title  = {Decomposition into two trees with orientation constraints},
  author = {Olivier Durand de Gevigney},
  journal= {arXiv preprint arXiv:1304.3613},
  year   = {2013}
}

Comments

5 pages, 2 figures

R2 v1 2026-06-21T23:58:42.441Z