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Upper bound on 3-rainbow domination in graphs with minimum degree 2

机译:在最低2度的图表中的3-Rainbow统治上限

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Let k = 1 be an integer, and let G be a graph. A function f : V(G) - 2({1,...,k}) is a k-rainbow dominating function of G if every vertex x is an element of V(G) with f (x) = empty set satisfies boolean OR(y is an element of NG(x))f (y) = {1,...,k}. The k-rainbow domination number of G, denoted by gamma(rk)(G), is the minimum weight w(f) = Sigma(x is an element of V(G))vertical bar f(x)vertical bar of a k-rainbow dominating function f of G. In this paper, we prove that for every connected graph G of order n = 8 with delta(G) = 2, gamma(r3)(G) = 5n/6. (C) 2018 Elsevier B.V. All rights reserved.
机译:让k& = 1是整数,让g是图形。 功能f:v(g) - & 2({1,...,k})是g的k-targowbow主导功能,如果每个顶点x是用f(x)=空集满足布尔的v(g)的元素,或者(y是一个元素 ng(x))f(y)= {1,...,k}。 由伽马(RK)(G)表示的k彩虹统治数为G,是最小权重W(f)= sigma(x是V(g)的一个元素)垂直条f(x)垂直条 K-Rainbow占主导地位F的G.在本文中,我们证明了每种连接的图表G. = 8 = 8,Δ= 2,γ(R3)(g)& = 5n / 6。 (c)2018 Elsevier B.v.保留所有权利。

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