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WIENER INDEX ON TRACEABLE AND HAMILTONIAN GRAPHS

Published online by Cambridge University Press:  30 August 2016

RUIFANG LIU*
Affiliation:
School of Mathematics and Statistics, Zhengzhou University, Zhengzhou, Henan 450001, China email rfliu@zzu.edu.cn
XUE DU
Affiliation:
School of Mathematics and Statistics, Zhengzhou University, Zhengzhou, Henan 450001, China email 15225101865@163.com
HUICAI JIA
Affiliation:
College of Science, Henan Institute of Engineering, Zhengzhou, Henan 451191, China email jhc607@163.com
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Abstract

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We give sufficient conditions for a graph to be traceable and Hamiltonian in terms of the Wiener index and the complement of the graph, which correct and extend the result of Yang [‘Wiener index and traceable graphs’, Bull. Aust. Math. Soc.88 (2013), 380–383]. We also present sufficient conditions for a bipartite graph to be traceable and Hamiltonian in terms of its Wiener index and quasicomplement. Finally, we give sufficient conditions for a graph or a bipartite graph to be traceable and Hamiltonian in terms of its distance spectral radius.

Type
Research Article
Copyright
© 2016 Australian Mathematical Publishing Association Inc. 

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