scientific article

zbMath1279.03067MaRDI QIDQ2906563

Marat M. Arslanov

Publication date: 5 September 2012

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

difference hierarchytutorialErshov hierarchy\(\Delta_2^0\) sets\(n\)-c.e. sets

Mathematics Subject Classification ID

Research exposition (monographs, survey articles) pertaining to mathematical logic and foundations (03-02) Other Turing degree structures (03D28) Hierarchies of computability and definability (03D55)

Related Items (8)

Normalizing notations in the Ershov hierarchy ⋮ A classification of low c.e. sets and the Ershov hierarchy ⋮ Definable relations in Turing degree structures ⋮ Avoiding uniformity in the \(\Delta_2^0\) enumeration degrees ⋮ \textit{CEA} operators and the ershov hierarchy ⋮ Weak density and nondensity among transfinite levels of the Ershov hierarchy ⋮ Turing jumps in the Ershov hierarchy ⋮ Strongly \(\eta \)-representable degrees and limitwise monotonic functions

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