@inproceedings{d8e16c48b28f4798b16102375eb0e06a,

title = "Eigenvalues, expanders and superconcentrators",

abstract = "Explicit construction of families of linear expanders and superconcentrators is relevant to theoretical computer science in several ways. There is essentially only one known explicit construction. Here we show a correspondence between the eigenvalues of the adjacency matrix of a graph and its expansion properties, and combine it with results on Group Representations to obtain many new examples of families of linear expanders. We also obtain better expanders than those previously known and use them to construct explicitly n-superconcentrators with ≃157.4 n edges, much less than the previous most economical construction. ",

author = "Noga Alon and Milman, {V. D.}",

note = "Publisher Copyright: {\textcopyright} 1984 IEEE.; 25th Annual Symposium on Foundations of Computer Science, FOCS 1984 ; Conference date: 24-10-1984 Through 26-10-1984",

year = "1984",

language = "English (US)",

series = "Proceedings - Annual IEEE Symposium on Foundations of Computer Science, FOCS",

publisher = "IEEE Computer Society",

pages = "320--322",

booktitle = "25th Annual Symposium on Foundations of Computer Science, FOCS 1984",

address = "United States",

}