No starlike trees are cospectral

被引:45
作者
Lepovic, M [1 ]
Gutman, I [1 ]
机构
[1] Univ Kragujevac, Fac Sci, YU-34000 Kragujevac, Yugoslavia
关键词
starlike tree; spectrum (of graph); cospectral graphs;
D O I
10.1016/S0012-365X(01)00169-8
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
A tree is said to be starlike if exactly one of its vertices has degree greater than two. We show that no two non-isomorphic starlike trees are cospectral. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:291 / 295
页数:5
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