Time- and tape-bounded turing acceptors and AFLs

  • Authors:
  • Ronald V. Book;Sheila A. Greibach;Ben Wegbreit

  • Affiliations:
  • -;-;-

  • Venue:
  • Journal of Computer and System Sciences
  • Year:
  • 1970

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Abstract

Complexity classes of formal languages defined by time- and tape-bounded Turing acceptors are studied. Sufficient conditions for these classes to be AFLs are given. Further, it is shown that a time-bounded nondeterministic Turing acceptor need have only two storage tapes.