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COCO
2003
Springer

Are Cook and Karp Ever the Same?

9 years 2 months ago
Are Cook and Karp Ever the Same?
We consider the question whether there exists a set A such that every set polynomial-time Turing equivalent to A is also many-one equivalent to A. We show that if E = NE then no sparse set has this property. We give the first relativized world where there exists a set with this property, and in this world the set A is sparse.
Richard Beigel, Lance Fortnow
Added 06 Jul 2010
Updated 06 Jul 2010
Type Conference
Year 2003
Where COCO
Authors Richard Beigel, Lance Fortnow
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