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A Spectral Turán Theorem

Published online by Cambridge University Press:  11 October 2005

FAN CHUNG
FAN CHUNG
Affiliation:
Department of Mathematics, University of California, San Diego, CA 92093-0112, USA (e-mail: [email protected])
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Abstract

If all nonzero eigenvalues of the (normalized) Laplacian of a graph $G$ are close to 1, then $G$ is $t$-Turán in the sense that any subgraph of $G$ containing no $K_{t+1}$ contains at most $(1-1/t + o(1) ) e(G)$ edges where $e(G)$ denotes the number of edges in G.

Type
Paper
Information
Combinatorics, Probability and Computing , Volume 14 , Issue 5-6 , November 2005 , pp. 755 - 767
Copyright
2005 Cambridge University Press

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