According to the biography " Fan Rong K Chung Graham ", " " Spectral graph theory studies how the spectrum of the Laplacian of a graph is related to its combinatorial properties . " " '.
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The point-set and combinatorial models of solids are entirely consistent with each other, can be used interchangeably, relying on continuum or combinatorial properties as needed, and can be extended to " n " dimensions.
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The two best known books are " Spectral Graph Theory " and " ErdQs on Graphs " . " Spectral Graph Theory " studies how the spectrum of the Laplacian of a graph is related to its combinatorial properties . " ErdQs on Graphs ", which was jointly written by Fan Chung and Ron Graham, studies many of Paul ErdQs problems and conjectures in graph theory.
