On Q-integral graphs with edge-degrees at most six
On Q-integral graphs with edge-degrees at most six
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DOI：
10.1016/j.laa.2019.04.015
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发表时间：
2019-09
影响因子：
1.1
通讯作者：
Jongyook Park;Y. Sano
中科院分区：
文献类型：
--
作者：
Jongyook Park;Y. Sano
Q-整图是无符号拉普拉斯算子只有整特征值的图。边的边度是与该边相邻的边的数量。2008年，S. K. Simić和Z. Stanić研究了边度不超过5的连通Q-整图。本文研究了边度不超过6的连通Q-整图。
Q-integral graphs are graphs whose signless Laplacians have only integral eigenvalues. The edge-degree of an edge is the number of edges adjacent to the edge. In 2008, S. K. Simić and Z. Stanić studied connectedQ-integral graphs with edge-degrees at most five. In this paper, we study connectedQ-integral graphs with edge-degrees at most six.