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Vietnam Journal of Mathematics 35:2(2007)
163-168
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Sharp Upper Bounds on the Spectral Radius of
Graph
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Lihua Feng
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Abstract. In this paper, we present some new
sharp upper bounds on the adjacency spectral radius of a graph in terms of
th degrees and average 2-degrees of vertices. We also give two examples to
show that sometimes our results are better.
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2000 Mathematics Subject Classification: 05C50.
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Keywords: Adjacency matrix; Q-matrix; Spectral radius.
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Established
by Vietnam Academy of Science and Technology & Vietnam Mathematical
Society
Published
by Springer since January 2013
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