On trees with equal Roman domination and outer-independent Roman domination number
A Roman dominating function (RDF) on a graph $G$ is a function $f : V (G) \to \{0, 1, 2\}$ satisfying the condition that every vertex $u$ for which $f(u) = 0$ is adjacent to at least one vertex $v$ for which $f(v) = 2$. A Roman dominating function $f$ is called an outer-independent Roman dominati...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Azarbaijan Shahide Madani University
2019-12-01
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Series: | Communications in Combinatorics and Optimization |
Subjects: | |
Online Access: | http://comb-opt.azaruniv.ac.ir/article_13865_778d0f97a1447e3fa6dcc653002a9d16.pdf |