Twin minus domination numbers in directed graphs
Let $D=(V,A)$ be a finite simple directed graph. A function $f:V\longrightarrow \{-1,0,1\}$ is called a twin minus dominating function if $f(N^-[v])\ge 1$ and $f(N^+[v])\ge 1$ for each vertex $v\in V$. The twin minus domination number of $D$ is $\gamma_{-}^*(D)=\min\{w(f)\mid f \mbo...
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| Autors principals: | , |
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| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
Azarbaijan Shahide Madani University
2016-06-01
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| Col·lecció: | Communications in Combinatorics and Optimization |
| Matèries: | |
| Accés en línia: | http://comb-opt.azaruniv.ac.ir/article_13575.html |
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