K.K. Dabrowski
Tree pivot-minors and linear rank-width
Dabrowski, K.K.; Dross, F.; Jeong, J.; Kanté, M.M.; Kwon, O.; Oum, S.; Paulusma, D.
Authors
F. Dross
J. Jeong
M.M. Kanté
O. Kwon
S. Oum
Professor Daniel Paulusma daniel.paulusma@durham.ac.uk
Professor
Abstract
Treewidth and its linear variant path-width play a central role for the graph minor relation. Rank-width and linear rank-width do the same for the graph pivot-minor relation. Robertson and Seymour (1983) proved that for every tree T there exists a constant cT such that every graph of path-width at least cT contains T as a minor. Motivated by this result, we examine whether for every tree T there exists a constant dT such that every graph of linear rank-width at least dT contains T as a pivot-minor. We show that this is false if T is not a caterpillar, but true if T is the claw.
Citation
Dabrowski, K., Dross, F., Jeong, J., Kanté, M., Kwon, O., Oum, S., & Paulusma, D. (2019). Tree pivot-minors and linear rank-width.
Conference Name | EuroComb 2019 |
---|---|
Conference Location | Bratislava, Slovakia |
Acceptance Date | May 7, 2019 |
Online Publication Date | Jul 29, 2019 |
Publication Date | Jul 29, 2019 |
Deposit Date | Jun 12, 2019 |
Volume | 88 |
Pages | 577-583 |
Series Number | 3 |
Series ISSN | 0862-9544 |
Public URL | https://durham-repository.worktribe.com/output/1142670 |
Publisher URL | http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/amuc/index |
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