Sharp Bounds on the Signless Laplacian Estrada Index of Graphs
Sharp Bounds on the Signless Laplacian Estrada Index of Graphs
复制标题
图的无符号拉普拉斯埃斯特拉达指数的锐界
作者:
Gao Shan;Liu Huiqing
Let $G$ be a connected graph with $n$ vertices and $m$ edges. Let $q_1,q_2,\ldots,q_n$ be the eigenvalues of the signless Laplacian matrix of $G$, where $q_1\ge q_2\ge \cdots\ge q_n$. The signless Laplacian Estrada index of $G$ is defined as $SLEE(G)=\sum_{i=1}^ne^{q_i}$. In this paper, we present some sharp lower bounds for $SLEE(G)$ in terms of the $k$-degree and the first Zagreb index, respectively.
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影响因子:
1.1
作者:
Tam, Bit-Shun;Fan, Yi-Zheng;Zhou, Jun
通讯作者:
Zhou, Jun
DOI:
10.1007/0-306-46907-3_6
发表时间:
2002
期刊:
--
影响因子:
--
作者:
M. Randic;M. Razinger
通讯作者:
M. Randic;M. Razinger
DOI:
10.1007/bf00551363
发表时间:
1974-06
期刊:
Theoretica chimica acta
影响因子:
--
作者:
D. Cvetkovic;I. Gutman;N. Trinajstic
通讯作者:
D. Cvetkovic;I. Gutman;N. Trinajstic
DOI:
--
发表时间:
2007
期刊:
--
影响因子:
--
作者:
Hou Yao-ping;Tang Zhen;Woo Chingwah
通讯作者:
Hou Yao-ping;Tang Zhen;Woo Chingwah
DOI:
--
发表时间:
2011-06
期刊:
arXiv: Combinatorics
影响因子:
--
作者:
Aleksandar Ilić;Bo Zhou
通讯作者:
Aleksandar Ilić;Bo Zhou