Article
Keywords:
spectra of graphs; squares of graphs; bipartite graphs; metrically regular graphs (MRG); association scheme
Summary:
Metrically regular bigraphs the square of which are metrically regular graphs are investigated in the case of graphs with 6 distinct eigenvalues (these eigenvalues can have variuos multiplicities).
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References:
[2] Vetchý V.:
Metrically regular square of metrically regular bigraphs I. Arch. Math. (Brno), Tomus 27b (1992), 183-197.
MR 1189214