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Novel inequalities for generalized graph entropies – graph energies and topological indices. (English) Zbl 1390.05132

Summary: The entropy of a graph is an information-theoretic quantity for measuring the complexity of a graph. After Shannon introduced the entropy to information and communication, many generalizations of the entropy measure have been proposed, such as Rényi entropy and Daróczy entropy. In this article, we prove accurate connections (inequalities) between generalized graph entropies, graph energies, and topological indices. Additionally, we obtain some extremal properties of nine generalized graph entropies by employing graph energies and topological indices.

MSC:

05C50 Graphs and linear algebra (matrices, eigenvalues, etc.)
05C90 Applications of graph theory
05C35 Extremal problems in graph theory
94A17 Measures of information, entropy

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