@TECHREPORT{Kučera_lowupper, author = {Antonín Kučera and Theodore and A. Slaman}, title = {Low upper bounds of ideals}, institution = {}, year = {} }
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Abstract
Abstract. We show that there is a low T-upper bound for the class of K-trivial sets, namely those which are weak from the point of view of algorithmic randomness. This result is a special case of a more general characterization of ideals in ∆0 2 T-degrees for which there is a low T-upper bound. 1.