Nonregular Graphs with Three Eigenvalues
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Edwin R. van Dam
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Article
📅
1998
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Elsevier Science
🌐
English
⚖ 387 KB
We study nonregular graphs with three eigenvalues. We determine all the ones with least eigenvalue &2, and give new infinite families of examples. 1998 Academic Press ## 1. Introduction In this paper we look at the graphs that are generalizations of strongly regular graphs (cf. [3, 6, 16]) by drop