Undecidability Results for Low Complexity Degree Structures Extended Abstract

نویسنده

  • Rod Downey
چکیده

We prove that the theory of EXPTIME degrees with respect to polynomial time Turing and many-one re-ducibility is undecidable. To do so we use a coding method based on ideal lattices of Boolean algebras which was introduced in 7]. The method can be applied in fact to all hyper-polynomial time classes.

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تاریخ انتشار 1997