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# Jugeote Shox Nike Turbo 13 Courir Chaussures Homme Noire Rouges

We prove that there is no sparse hard set for P under logspace computable Nike Shox Femme Soldes bounded truth-table reductions unless P=L. In case of reductions computable in NC1, the collapse goes down to P=NC1. We parameterize this result and obtain a generic theorem allowing us to vary the sparseness condition, the space bound and the number of queries of the truth-table reduction. Another instantiation yields that there is no quasipolynomially dense hard set for P under polylog-space computable truth-table reductions using polylogarithmically many queries unless P is in polylog-space. Nike Shox Nz Pas Cher We also apply the proof technique to NL and L. We establish that there is no sparse hard set for NL under logspace computable bounded truth-table reductions unless NL=L and that there is no sparse hard set for L under NC1-computable bounded truth-table reductions unless L=NC1. We show that all these results carry over to the randomized setting: If we allow two-sided error randomized reductions with confidence at least inversely polynomial, we obtain collapses to the corresponding randomized classes in the multiple access model. In addition, we Chaussures Nike Shox Rivalry Homme Pas Cher prove that there is no sparse hard set for NP under two-sided error randomized polynomial-time bounded truth-table reductions with confidence at least inversely polynomial unless NP=RP.

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