On the energy and Estrada index of strongly quotient graphs. (English) Zbl 1306.05141
Summary: In this paper, we consider the strongly quotient graphs and obtain some better results for the energy and Estrada index of these graphs, as well as some relations between Estrada index and the graph energy.
MSC:
| 05C50 | Graphs and linear algebra (matrices, eigenvalues, etc.) |
| 05C78 | Graph labelling (graceful graphs, bandwidth, etc.) |
| 05C90 | Applications of graph theory |
| 92E10 | Molecular structure (graph-theoretic methods, methods of differential topology, etc.) |
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