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. 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 (2015) as a possible edge-version of tree decompositions. We show that every graph admits a tree-cut decomposition of minimum width that additionally satisfies an edge-connectivity condition analogous to Thomas' leanness.
Original language | English (US) |
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Pages (from-to) | 1-22 |
Number of pages | 22 |
Journal | Journal of Combinatorial Theory. Series B |
Volume | 148 |
DOIs | |
State | Published - May 2021 |
Keywords
- Connectivity
- Edge-disjoint paths
- Graph immersions
- Lean decompositions
- Linked decompositions
- Tree-cut width
ASJC Scopus subject areas
- Theoretical Computer Science
- Discrete Mathematics and Combinatorics
- Computational Theory and Mathematics