On the domination number of $t$-constrained de Bruijn graphs

Autor: Tiziana Calamoneri, Angelo Monti, Blerina Sinaimeri
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Discrete Mathematics & Theoretical Computer Science, Vol vol. 24, no 2, Iss Graph Theory (2022)
Druh dokumentu: article
ISSN: 1365-8050
DOI: 10.46298/dmtcs.8879
Popis: Motivated by the work on the domination number of directed de Bruijn graphs and some of its generalizations, in this paper we introduce a natural generalization of de Bruijn graphs (directed and undirected), namely $t$-constrained de Bruijn graphs, where $t$ is a positive integer, and then study the domination number of these graphs. Within the definition of $t$-constrained de Bruijn graphs, de Bruijn and Kautz graphs correspond to 1-constrained and 2-constrained de Bruijn graphs, respectively. This generalization inherits many structural properties of de Bruijn graphs and may have similar applications in interconnection networks or bioinformatics. We establish upper and lower bounds for the domination number on $t$-constrained de Bruijn graphs both in the directed and in the undirected case. These bounds are often very close and in some cases we are able to find the exact value.
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