JournalArticle4389477Spectral Graph Theory and its Applications2007SpielmanD.A.29-38 ISSN: 0272-5428 DOI: 10.1109/FOCS.2007.56Foundations of Computer Science, 2007. FOCS '07. 48th Annual IEEE Symposium onOct.Spectral graph theory is the study of the eigenvalues and eigenvectors of matrices associated with graphs. In this tutorial, we will try to provide some intuition as to why these eigenvectors and eigenvalues have combinatorial significance, and will sitn'ey some of their applications.graph, spectral, theory