首页|Determination of double quasi-star tree from its Laplacian spectrum

Determination of double quasi-star tree from its Laplacian spectrum

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Let Hn(p,q) be a tree obtained from two stars K1,p and K1,q by identifying the center of K1,p with one end of a path Pn and the center of K1,q with the other end of Pn. We call Hn(p,p-1) a double quasi-star tree. In this paper, we show that a double quasi-star tree is determined by its Laplacian spectrum.

Laplacian spectrumcospectral graphdouble quasi-star tree

LU Peng-li、ZHANG Xiao-dong、ZHANG Yuan-ping

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School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, P. R. China

Department of Mathematics, Shanghai Jiao Tong University, Shanghai 200240, P. R. China

Natural Science Foundation of Gansu ProvinceNatural Science Foundation of Gansu Province国家自然科学基金Foundation of Lanzhou University of Technology

3ZS051-A25-0370809RJZA017508770340914ZX136

2010

10.1007/s11741-010-0622-1

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2010.14(3)
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