Characterizing identifying codes from the spectrum of a graph or digraph
Fecha de publicación2019
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A (1, ≤ ℓ)-identifying code in digraph D is a dominating subset C of vertices of D, such that all distinct subsets of vertices of D with cardinality at most ℓ have distinct closed in-neighborhoods within C. As far as we know, it is the very first time that the spectral graph theory has been applied
to the identifying codes. We give a new method to obtain an upper bound on ℓ for digraphs. The results obtained here can also be applied to graphs.
Es parte deLinear Algebra and its Applications, 2019, vol. 570, p. 138-147
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