On some reducibility and existential interpretability of structures

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We prove the embeddability of the structure of Turing degrees into the structure of degrees of existential interpretability. The notion of weakly bounded Turing reducibility (wbT-reducibility) arises in the proof naturally. We demonstrate that this reducibility is situated strictly between the bounded truth-table reducibility and Turing reducibility and differs from the truth-table reducibility.

Original languageEnglish
Pages (from-to)281-287
Number of pages7
JournalSiberian Mathematical Journal
Issue number2
Publication statusPublished - 1 Mar 2017


  • existential interpretability of structures
  • weakly bounded Turing reducibility


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