Double domination in maximal outerplanar graphs

In graph GG, a vertex dominates itself and its neighbors. A subset S⊆V(G)S\subseteq V\left(G) is said to be a double-dominating set of GG if SS dominates every vertex of GG at least twice. The double domination number γ×2(G){\gamma }_{\times 2}\left(G) is the minimum cardinality of a double dominati...

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Bibliographic Details
Main Authors: Zhuang Wei, Zheng Qiuju
Format: Article
Language:English
Published: De Gruyter 2022-10-01
Series:Open Mathematics
Subjects:
Online Access:https://doi.org/10.1515/math-2022-0488