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Lower bound of the sum of positive eigenvalues of a graph

โœ Scribed by Li Jiongsheng; Wang Xinmao


Book ID
110624119
Publisher
Institute of Applied Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society
Year
1998
Tongue
English
Weight
190 KB
Volume
14
Category
Article
ISSN
0168-9673

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๐Ÿ“œ SIMILAR VOLUMES


Sharp lower bounds of the least eigenval
โœ Yuan Hong; Jin-Long Shu ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 75 KB

Let G be a simple graph with n P 3 vertices and orientable genus g and non-orientable genus h. We deยฎne the Euler characteristic vq of a graph G by vq maxf2 ร€ 2gY 2 ร€ hg. Let kq be the least eigenvalue of the adjacency matrix A of G. In this paper, we obtain the following lower bounds of kq kq P ร€ 2

Bounds of eigenvalues of a graph
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