期刊名称：AKCE International Journal of Graphs and Combinatorics
印刷版ISSN：0972-8600
出版年度：2018
卷号：15
期号：3
页码：261-270
DOI：10.1016/j.akcej.2017.10.006
语种：English
出版社：Elsevier
摘要：AbstractIn this paper we determine the full normalized Laplacian spectrum of the subdivision-vertex join, subdivision-edge join,R-vertex join, andR-edge join of two regular graphs in terms of the normalized Laplacian eigenvalues of the graphs. Moreover, applying these results we find non-regular normalized Laplacian cospectral graphs.
