Sobre el espectro del digrafo (h, j) adjunto de un multidigrafo K–regular

Abstract

In this paper we relate the Matrix Theory and the Graphs Theory, particularlly we work with the characteristic polynomial of precedence matrix with the spectrum of (h, j) adjoint digraphs. The object of this work is to enunciate and demonstrate, with adequate matrix representations, a theorem that allows to determinate the eigenvalues of an (h, j) adjoin digraph of a multidigraph k–regular, resulting the respective multiplicities and also the shape of the eigenvectors associated.