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automata_two_way (599B)

      1 # Automata two way
      2 
      3 [Automata] that can read the input [word] in both directions
      4 
      5 [Automata_two_way_determinization]
      6  
      7 Can be converted back to [automata_one_way].
      8 - Elementary construction to get an [automata_nondeterministic] for the complement language in [vardi1989note] with exp(n) blowup
      9 - Elementary construction to get an [automata_deterministic] for the language in [shepherdson1959reduction] with exp(n^2) blowup
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     11 Generalization: [Two_way_nondeterministic_pushdown_automaton]
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     13 Up: [automata]
     14 
     15 See also: [2rpq]
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     17 Aliases: two-way automaton, two-way automata, 2 way automaton, 2 way automata