A Menger-like property of tree-cut width
Abstract
In 1990, Thomas proved that every graph admits a tree decomposition of minimum width that additionally satisfies a certain vertex-connectivity condition called leanness [A Menger-like property of tree-width: The finite case. Journal of Combinatorial Theory, Series B, 48(1):67-76, 1990]. This result had many uses and has been extended to several other decompositions. In this paper, we consider tree-cut decompositions, that have been introduced by Wollan as a possible edge-version of tree decompositions [The structure of graphs not admitting a fixed immersion. Journal of Combinatorial Theory, Series B, 110:47-66, 2015]. We show that every graph admits a tree-cut decomposition of minimum width that additionally satisfies an edge-connectivity condition analogous to Thomas' leanness.
Keywords
Cite
@article{arxiv.1808.00863,
title = {A Menger-like property of tree-cut width},
author = {Archontia C. Giannopoulou and O-joung Kwon and Jean-Florent Raymond and Dimitrios M. Thilikos},
journal= {arXiv preprint arXiv:1808.00863},
year = {2020}
}
Comments
To appear in Journal of Combinatorial Theory, Series B. Layout aside, this version is identical to the published one