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Просмотр по автору "Faizrahmanov M.K."

Просмотр по автору "Faizrahmanov M.K."

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  • Absolute and Relative Properties of Negatively Numbered Families 
    Faizrahmanov M.K.; Puzarenko V.G. (2021)
    Abstract: We study in this paper negative A-numberings where A are admissible structures. We establish that a series of classical assumptions is remained to hold for negative A-numberings in the case of the application of ...
  • Degrees of Enumerations of Countable Wehner-Like Families 
    Kalimullin I.S.; Faizrahmanov M.K. (2021)
    This paper is a survey of results on countable families with natural degree spectra. These results were obtained by a modification of the methodology proposed by Wechner, who first found a family of sets with the spectrum ...
  • Positive Numberings in Admissible Sets 
    Kalimullin I.S.; Puzarenko V.G.; Faizrahmanov M.K. (2020)
    © 2020, Pleiades Publishing, Ltd. We construct the example of an admissible set A such that there exists a positive computable A-numbering of the family of all A-c.e. sets, whereas any negative computable A-numberings are absent.
  • WEAK REDUCIBILITY OF COMPUTABLE AND GENERALIZED COMPUTABLE NUMBERINGS 
    Ivanova Z.K.; Faizrahmanov M.K. (2021)
    We consider universal and minimal computable numberings with respect to weak reducibility. A family of total functions that have a universal numbering and two non-weakly equivalent computable numberings is constructed. A ...

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