The energy of a graph G is the sum of the absolute values of its eigenvalues. In this paper, we study the energies of some classes of non-regular graphs. Also the spectrum of some non-regular graphs and their complements are discussed.
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Indulal, G., Vijayakumar, A. Energies of some Non-regular Graphs. J Math Chem 42, 377–386 (2007). https://doi.org/10.1007/s10910-006-9108-7
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DOI: https://doi.org/10.1007/s10910-006-9108-7