Strongly distance-balanced graphs and graph products

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Strongly distance-balanced graphs and graph products1

A graph G is strongly distance-balanced if for every edge uv of G and every i ≥ 0 the number of vertices x with d(x, u) = d(x, v)−1 = i equals the number of vertices y with d(y, v) = d(y, u) − 1 = i. It is proved that the strong product of graphs is strongly distance-balanced if and only if both factors are strongly distancebalanced. It is also proved that connected components of the direct pro...

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ژورنال

عنوان ژورنال: European Journal of Combinatorics

سال: 2009

ISSN: 0195-6698

DOI: 10.1016/j.ejc.2008.09.018