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Geodesic Transversal of Hypercube and Butterfly networks
Abstract
A geodesic P of a connected graph G(V,E) is called a maximal geodesic if there exists no geodesic P' in G that contains P as its sub-path. The geodesic transversal problem determines a subset S⊆ V(G) such that every possible maximal geodesic of G includes at least one vertex of S. Such a set with minimum number of elements is called a gt-set and its cardinality is the gt-number of G. In this paper, we establish a general result, called the Geodesic Transversal lemma which provides a lower bound for the gt-number of an arbitrary graph G in terms of the gt-number of its induced subgraphs. Using this lemma, we determine the gt-number of Butterfly and Hypercube networks.
Related
BibTeX
@misc{prabha2026geodesic,
title = {{Geodesic Transversal of Hypercube and Butterfly networks}},
author = {R. Prabha and B. Sandhiya and Paul Manuel},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.06107},
eprint = {2611.06107},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.06107},
}
RIS
TY - UNPB
TI - Geodesic Transversal of Hypercube and Butterfly networks
AU - R. Prabha
AU - B. Sandhiya
AU - Paul Manuel
PY - 2026
DA - 2026/11/04
PB - arXiv
DO - 10.48550/arxiv.2611.06107
UR - https://arxiv.org/abs/2611.06107
AB - A geodesic P of a connected graph G(V,E) is called a maximal geodesic if there exists no geodesic P' in G that contains P as its sub-path. The geodesic transversal problem determines a subset S⊆ V(G) such that every possible maximal geodesic of G includes at least one vertex of S. Such a set with minimum number of elements is called a gt-set and its cardinality is the gt-number of G. In this paper, we establish a general result, called the Geodesic Transversal lemma which provides a lower bound for the gt-number of an arbitrary graph G in terms of the gt-number of its induced subgraphs. Using this lemma, we determine the gt-number of Butterfly and Hypercube networks.
ER -