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Spectral characterizations of sandglass graphs

Authors
Journal
Applied Mathematics Letters
0893-9659
Publisher
Elsevier
Publication Date
Volume
22
Issue
8
Identifiers
DOI: 10.1016/j.aml.2009.01.050
Keywords
  • Cospectral Graphs
  • Laplacian Spectrum
  • Adjacency Spectrum
  • Sandglass Graph
  • Bicyclic Graph

Abstract

Abstract The sandglass graph is obtained by appending a triangle to each pendant vertex of a path. It is proved that sandglass graphs are determined by their adjacency spectra as well as their Laplacian spectra.

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