Remarks on the outer-independent double Italian domination number

Let \(G\) be a graph with vertex set \(V(G)\). If \(u\in V(G)\), then \(N[u]\) is the closed neighborhood of \(u\). An outer-independent double Italian dominating function (OIDIDF) on a graph \(G\) is a function \(f:V(G)\longrightarrow \{0,1,2,3\}\) such that if \(f(v)\in\{0,1\}\) for a vertex \(v\i...

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Bibliographic Details
Main Author: Lutz Volkmann
Format: Article
Language:English
Published: AGH Univeristy of Science and Technology Press 2021-03-01
Series:Opuscula Mathematica
Subjects:
Online Access:https://www.opuscula.agh.edu.pl/vol41/2/art/opuscula_math_4113.pdf