Direct Sum Testing

SIAM J. Comput., Volume 46, Issue 4, 2017, Pages 1336-1369.

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Keywords:
direct sumlinearity testingmiscellaneousproperty testing

Abstract:

The k-fold direct sum encoding of a string α ∈ --0,1}n is a function fα that takes as input sets S ⊆ [n] of size k and outputs fα (S) = ∑i ∈ S αi (mod 2. In this paper we prove a Direct Sum Testing theorem. We describe a three query test that accepts with probability one any function of the form fα for some α, and rejects with probability...More

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