Counting the changes of random Δ02 sets

Consider a Martin-Löf random Δ02 set Z. We give lower bounds for the number of changes of Zs|n for computable approximations of Z. We show that each nonempty Π0 1 class has a low member Z with a computable approximation that changes only o(2n ) times. We prove that each superlow ML-random set alread...

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Autor principal: Figueira, Santiago Daniel
Publicado: 2010
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03029743_v6158LNCS_n_p162_Figueira
http://hdl.handle.net/20.500.12110/paper_03029743_v6158LNCS_n_p162_Figueira
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