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 w...
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Format: | Tagungsbericht |
Sprache: | eng |
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Zusammenfassung: | 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. |
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ISSN: | 1093-0159 2575-8403 |
DOI: | 10.1109/CCC.2003.1214431 |