A Relationship between the Walks and the Semi-Edge Walks of Graphs |
Received:November 04, 2016 Revised:January 05, 2017 |
Key Words:
walks semi-edge walks signless Laplacian spectral radius planar graphs
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Fund Project:Supported by GRF of Hong Kong (Grant No.HKBU202413), FRG of Hong Kong Baptist University (Grant No.FRG2/14-15/012). |
Author Name | Affiliation | Peng HUANG | Department of Mathematics, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, P. R. China | Wai Chee SHIU | Department of Mathematics, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, P. R. China | Pak Kiu SUN | Department of Mathematics, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong, P. R. China |
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Abstract: |
We establish a relation between the number of semi-edge walks of a connected graph and the number of walks of two auxiliary graphs. In addition, this relation gives upper bounds on the signless Laplacian spectral radius of connected graphs and planar graphs. |
Citation: |
DOI:10.3770/j.issn:2095-2651.2017.05.002 |
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