Abstract
The aim of this paper is to prove that, for every balanced digraph, in every incidence semiring over a semifield, each centroid set J of the largest distance also has the largest weight, and the distance of J is equal to its weight. This result is surprising and unexpected, because examples show that distances of arbitrary centroid sets in incidence semirings may be strictly less than their weights. The investigation of the distances of centroid sets in incidence semirings of digraphs has been motivated by the information security applications of centroid sets.
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Abawajy, J., Kelarev, A.V., Miller, M. et al. Distances of Centroid Sets in a Graph-Based Construction for Information Security Applications. Math.Comput.Sci. 9, 127–137 (2015). https://doi.org/10.1007/s11786-015-0217-1
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DOI: https://doi.org/10.1007/s11786-015-0217-1