An upper bound on the total outer-independent domination number of a tree
نویسندگان
چکیده
منابع مشابه
An Upper Bound on the Total Outer-independent Domination Number of a Tree
A total outer-independent dominating set of a graph G = (V (G), E(G)) is a set D of vertices of G such that every vertex of G has a neighbor in D, and the set V (G) \D is independent. The total outer-independent domination number of a graph G, denoted by γ t (G), is the minimum cardinality of a total outer-independent dominating set of G. We prove that for every tree T of order n ≥ 4, with l le...
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ژورنال
عنوان ژورنال: Opuscula Mathematica
سال: 2012
ISSN: 1232-9274
DOI: 10.7494/opmath.2012.32.1.153