Strong and robustly strong polynomial-time reducibilities to sparse sets (Q1177170)

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scientific article; zbMATH DE number 20022
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Strong and robustly strong polynomial-time reducibilities to sparse sets
scientific article; zbMATH DE number 20022

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    Strong and robustly strong polynomial-time reducibilities to sparse sets (English)
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    26 June 1992
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    Strong nondeterministic machines are those types of Turing machines that define the class \(\text{NP}\cap\text{co-NP}\). When equipped with the additional feature of an ''advice'', as studied by Karp and Lipton, two different definitions are possible: a robust and non-robust version. Both versions are studied in this paper and compared. Related to this research, an oracle-restricted positive relativization of the probabilistic class ZPP is developed.
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    nondeterminism
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    robust reducibility
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