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Some results on the reciprocal sum-degree distance of graphs

Guifu Su (), Liming Xiong (), Xiaofeng Su () and Xianglian Chen ()
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Guifu Su: School of Mathematics, Beijing Institute of Technology
Liming Xiong: School of Mathematics, Beijing Institute of Technology
Xiaofeng Su: College of Arts and Science, Shanghai Maritime University
Xianglian Chen: Changji University

Journal of Combinatorial Optimization, 2015, vol. 30, issue 3, No 3, 435-446

Abstract: Abstract In this contribution, we first investigate sharp bounds for the reciprocal sum-degree distance of graphs with a given matching number. The corresponding extremal graphs are characterized completely. Then we explore the $$k$$ k -decomposition for the reciprocal sum-degree distance. Finally, we establish formulas for the reciprocal sum-degree distance of join and the Cartesian product of graphs.

Keywords: The reciprocal sum-degree distance; Harary index; Matching number; $$k$$ k -Decomposition; Join graphs; Cartesian product graphs (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (2)

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DOI: 10.1007/s10878-013-9645-5

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