On Initial Segments of Turing Degrees Containing Simple T-Mitotic but not wtt-Mitotic Sets

Authors

  • Arsen H. Mokatsian Institute for Informatics and Automation Problems of NAS RA

DOI:

https://doi.org/10.51408/1963-0039

Keywords:

Mitotic set, T-reducibility, wtt-reducibility, Simple set, Contiguous degree

Abstract

We consider the properties of computably enumerable (c.e.) Turing degrees containing sets, which possess the property of a T-mitotic splitting but don't have a  wtt-mitotic splitting. It is proved that for any noncomputable c.e. degree b there exists a degree a, such that a · b and a contains a simple T- itotic set, which is not wtt-mitotic.

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Published

2021-12-10

How to Cite

Mokatsian, A. H. (2021). On Initial Segments of Turing Degrees Containing Simple T-Mitotic but not wtt-Mitotic Sets. Mathematical Problems of Computer Science, 52, 7–13. https://doi.org/10.51408/1963-0039