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COMBINATORICS
2004
67views more  COMBINATORICS 2004»
14 years 11 months ago
Random Cayley Graphs are Expanders: a Simple Proof of the Alon-Roichman Theorem
Zeph Landau, Alexander Russell
ECCC
2006
134views more  ECCC 2006»
14 years 12 months ago
Derandomizing the AW matrix-valued Chernoff bound using pessimistic estimators and applications
Ahlswede and Winter [AW02] introduced a Chernoff bound for matrix-valued random variables, which is a non-trivial generalization of the usual Chernoff bound for real-valued random...
Avi Wigderson, David Xiao
STOC
2004
ACM
157views Algorithms» more  STOC 2004»
16 years 5 days ago
Derandomizing homomorphism testing in general groups
The main result of this paper is a near-optimal derandomization of the affine homomorphism test of Blum, Luby and Rubinfeld (Journal of Computer and System Sciences, 1993). We sho...
Amir Shpilka, Avi Wigderson