Abstract. We give an alternative and more informative proof that every incomplete ${\Sigma^{0}_{2}}$ -enumeration degree is the meet of two incomparable ...
Missing: S02{ | Show results with:S02{
Kent, Andrea Sorbi, Branching in the S02{Sigma02}-enumeration degrees - a new perspective, 2008. DOI: 10.1007/s00153-008-0081-7. 537: Paul Brodhead, Douglas ...
Abstract. We show that the structure of the enumeration degrees De has a finite automorphism base consisting of finitely many total elements below the.
Missing: Sigma02 | Show results with:Sigma02
We survey a line of investigation into the theory of the enu- meration degrees. Enumeration reducibility captures a model of com- putation based on positive ...
Missing: Branching S02{ Sigma02
May 21, 2024 · Every second countable space X is associated with a set of enumeration degrees {dege (NBase(x)) | x ∈ X}. This approach leads to a rich study of ...
Missing: Branching S02{ Sigma02
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