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COMBINATORICS
2004
67views more  COMBINATORICS 2004»
15 years 12 days ago
Random Cayley Graphs are Expanders: a Simple Proof of the Alon-Roichman Theorem
Zeph Landau, Alexander Russell
ECCC
2006
134views more  ECCC 2006»
15 years 17 days 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 26 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