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math.CO2018
Short note on Randić energy
Luiz Emilio Allem, Gonzalo Molina, Adrián Pastine
In this paper, we consider the Randić energy of simple connected graphs. We provide upper bounds for in terms of the number of vertices and the nullity of the graph. We p…
math.CO2018
Multiplicity of eigenvalues of cographs
Luiz Emilio Allem, Fernando Tura
Motivated by the linear time algorithm that locates the eigenvalues of a cograph G [10], we investigate the multiplicity of eigenvalue for λ\neq -1,0. For cographs with balanced co…