The Distance Energy of Circulant Graphs

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  • Department of Mathematics, Shaoyang University
ZHOU Hou-qing(1963-), male, native of Xinshao, Hunan, professor of Shaoyang University, engages in spectral graph theory and applications.

Accepted date: 2014-11-27

  Online published: 2020-10-08

Supported by

Project Supported by Scientific Research Fund of Hunan Provincial Education Department(15C1235);

Abstract

For a connected graph G, the distance energy of G is a recently developed energytype invariant, defined as the sum of absolute values of the eigenvalues of the distance matrix G. A graph is called circulant if it is Cayley graph on the circulant group, i.e., its adjacency matrix is circulant. In this note, we establish lower bounds for the distance energy of circulant graphs. In particular, we discuss upper bound of distance energy for the 4-circulant graph. 

Cite this article

ZHOU Hou-qing . The Distance Energy of Circulant Graphs[J]. Chinese Quarterly Journal of Mathematics, 2018 , 33(3) : 233 -239 . DOI: 10.13371/j.cnki.chin.q.j.m.2018.03.002

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