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Bounds on graph eigenvalues II

โœ Scribed by Vladimir Nikiforov


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
122 KB
Volume
427
Category
Article
ISSN
0024-3795

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โœฆ Synopsis


We prove three results about the spectral radius ฮผ(G) of a graph G:

(b) For most irregular graphs G of order n and size m,


๐Ÿ“œ SIMILAR VOLUMES


Bounds on graph eigenvalues I
โœ Vladimir Nikiforov ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 115 KB
Bounds of eigenvalues of graphs
โœ Yuan Hong ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 469 KB

The eigenvalues of a graph are the eigenvalues of its adjacency matrix. This paper presents an algebraically defined invariant system of a graph. We get some bounds of the eigenvalues of graphs and propose a few open problems.

Bounds on graph spectra
โœ R.C Brigham; R.D Dutton ๐Ÿ“‚ Article ๐Ÿ“… 1984 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 304 KB
Bounds on eigenvalues and chromatic numb
โœ Dasong Cao ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 455 KB

We give new bounds on eigenvalue of graphs which imply some known bounds. In particular, if T(G) is the maximum sum of degrees of vertices a~t to a vertex in a graph G, the largest eigenvalue p(G) of G satisfies p(G) <~ ~IT(G) with equality if and only if either G is regular or G is bipartite and su