Italian domination in rooted product graphs

Autor: Hernandez-Ortiz, R., Montejano, L. P., Rodriguez-Velazquez, J. A.
Rok vydání: 2020
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1007/s40840-020-00962-3
Popis: In this article, we obtain closed formulae for the Italian domination number of rooted product graphs. As a particular case of the study, we derive the corresponding formulas for corona graphs, and we provide an alternative proof that the problem of computing the Italian domination number of a graph is NP-hard.
Databáze: arXiv