Relative Enumerability in Ershov's Hierarchy
Matematičeskie zametki, Tome 84 (2008) no. 4, pp. 506-515

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Generalizations to various levels of Ershov's hierarchy of the relationship between $n$-computable enumerability and relative enumerability are considered.
Keywords: relative enumerability, $n$-computable enumerability, Ershov's hierarchy, constructive ordinal, Turing degree, computable function, limit ordinal.
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     author = {I. I. Batyrshin},
     title = {Relative {Enumerability} in {Ershov's} {Hierarchy}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {506--515},
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     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2008_84_4_a2/}
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I. I. Batyrshin. Relative Enumerability in Ershov's Hierarchy. Matematičeskie zametki, Tome 84 (2008) no. 4, pp. 506-515. http://geodesic.mathdoc.fr/item/MZM_2008_84_4_a2/