On the Expressive Power of Existential Quantification in Polynomial-Time Computability
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AUTHOR NAME
Dieter Spreen
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AUTHOR AFFIL
; Fachbereich Mathematik, Theoretische Informatik; Universitat Siegen; (Zero function) Z(x) = #.; (Successors) S 0 (x) = x0 and S 1 (x) = x1.
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AUTHOR ADDR
; 57068 Siegen, Germany
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ABSTRACT
this paper to study the expressive power of bounded existential quantification in polynomial-time computability. Our goal was to characterize nondeterministic polynomial-time computations in a machine-independent way. The following considerations are intended to make our idea clear. Let # be the finite alphabet