The Halting Problem Relativized to Complements
نویسندگان
چکیده
منابع مشابه
Approximations to the Halting Problem
The halting set Kr = (x I r converges}, for any G6del numbering ~ = {~0, ~1 ,-..}, is nonrecursive. It may be possible, however, to approximate Kr by recursive s e t s . We note several results indicating that the degrees of recursive approximability of halting sets in arbitrary GSdel numberings have wide variation, while restriction to "optimal GSdel numberings" only narrows the possibilities ...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1973
ISSN: 0002-9939
DOI: 10.2307/2039138