no. 3
Minimal 2-dominating sets in trees
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 47 (2013) no. 3, pp. 235-240

We provide an algorithm for listing all minimal 2-dominating sets of a tree of order n in time 𝒪(1.3248n). This implies that every tree has at most 1.3248n minimal 2-dominating sets. We also show that this bound is tight.

DOI : 10.1051/ita/2013036
Classification : 05C05, 05C69, 05C85, 68R10, 68W05
Keywords: domination, 2-domination, minimal 2-dominating set, tree, counting, exact exponential algorithm, listing algorithm 
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     author = {Krzywkowski, Marcin},
     title = {Minimal 2-dominating sets in trees},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {235--240},
     year = {2013},
     publisher = {EDP Sciences},
     volume = {47},
     number = {3},
     doi = {10.1051/ita/2013036},
     mrnumber = {3103126},
     zbl = {1282.05179},
     language = {en},
     url = {https://www.numdam.org/articles/10.1051/ita/2013036/}
}
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Krzywkowski, Marcin. Minimal 2-dominating sets in trees. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 47 (2013) no. 3, pp. 235-240. doi: 10.1051/ita/2013036

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