Intersecting longest paths in chordal graphs
Combinatorics
2020-12-15 v1
Abstract
We consider the size of the smallest set of vertices required to intersect every longest path in a chordal graph. Such sets are known as longest path transversals. We show that if is the clique number of a chordal graph , then there is a transversal of order at most . We also consider the analogous question for longest cycles, and show that if is a 2-connected chordal graph then there is a transversal intersecting all longest cycles of order at most .
Keywords
Cite
@article{arxiv.2012.07221,
title = {Intersecting longest paths in chordal graphs},
author = {Daniel J. Harvey and Michael S. Payne},
journal= {arXiv preprint arXiv:2012.07221},
year = {2020}
}
Comments
11 pages