Ibarra, Oscar H. On two-way multihead automata. (English) Zbl 0256.68028 J. Comput. Syst. Sci. 7, 28-36 (1973). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 44 Documents MSC: 68Q45 Formal languages and automata PDF BibTeX XML Cite \textit{O. H. Ibarra}, J. Comput. Syst. Sci. 7, 28--36 (1973; Zbl 0256.68028) Full Text: DOI OpenURL References: [1] Harrison, M.A.; Ibarra, O.H., Multi-tape and multi-head pushdown automata, Information and control, 13, 433-470, (1968) · Zbl 0174.02701 [2] Ibarra, O.H., Characterizations of some tape and time complexity classes of Turing machines in terms of multihead and auxiliary stack automata, J. comput. systems sci., 5, 88-117, (1971) · Zbl 0255.68012 [3] Ibarra, O.H., A note concerning nondeterministic tape complexities, J. assoc. comput. Mach., 19, 608-612, (1972) · Zbl 0245.94044 [4] Ruby, S.; Fischer, P.C., Translational methods and computational complexity, (), 173-178 [5] Cook, S.A., A hierarchy for nondeterministic time complexity, (), 187-192 [6] Aho, A.V.; Hopcroft, J.E.; Ullman, J.D., Time and tape complexity of pushdown automaton languages, Information and control, 13, 186-206, (1968) · Zbl 0257.68065 [7] Cook, S.A., Characterizations of pushdown machines in terms of time-bounded computers, J. assoc. comput. Mach., 18, 4-18, (1971) · Zbl 0222.02035 [8] Hennie, F.C.; Stearns, R.E., Two-tape simulation of multitape Turing machines, J. assoc. comput. Mach., 13, 533-546, (1966) · Zbl 0148.24801 This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.