Defines multiple digraph Laplacian matrices and proves spectral relations, a radius bound with equality case, and a determinantal identity linking regular digraphs to their line digraphs.
The spectrum of the edge corona of two graphs
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On the Spectra of Digraph Laplacians
Defines multiple digraph Laplacian matrices and proves spectral relations, a radius bound with equality case, and a determinantal identity linking regular digraphs to their line digraphs.