The sum of all distances in bipartite graphs
Ivan Gutman, Yeong Nan Yeh (1995)
Mathematica Slovaca
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Ivan Gutman, Yeong Nan Yeh (1995)
Mathematica Slovaca
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Abbas, N., Culberson, J., Stewart, L. (2005)
Discrete Mathematics and Theoretical Computer Science. DMTCS [electronic only]
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Gutman, Ivan (1983)
Publications de l'Institut Mathématique. Nouvelle Série
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Richard Brewster, Christina Mynhardt, Laura Teshima (2013)
Open Mathematics
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A dominating broadcast on a graph G = (V, E) is a function f: V → {0, 1, ..., diam G} such that f(v) ≤ e(v) (the eccentricity of v) for all v ∈ V and such that each vertex is within distance f(v) from a vertex v with f(v) > 0. The cost of a broadcast f is σ(f) = Σv∈V f(v), and the broadcast number λ b (G) is the minimum cost of a dominating broadcast. A set X ⊆ V(G) is said to be irredundant if each x ∈ X dominates a vertex y that is not dominated by any other vertex in X; possibly...
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Ferdinand Gliviak (1975)
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