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Lower bounds of the Laplacian spectrum of graphs based on diameter

✍ Scribed by Mei Lu; Lian-zhu Zhang; Feng Tian


Book ID
104036800
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
125 KB
Volume
420
Category
Article
ISSN
0024-3795

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On the Laplacian Spectrum of (Ξ±, Ο‰) -Gra
✍ Alexander Kelmans πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 111 KB

We study the Laplacian spectrum of (Ξ±, Ο‰)-graphs which play an important role in the theory of perfect graphs. The properties of the spectrum we found allow the establishment of some structural properties of (Ξ±, Ο‰)-graphs. We describe, in particular, a class of graphs that are not subgraphs of (Ξ±, Ο‰