Alternation for two-way machines with sublogarithmic space

  • Burchard von Braunmühl
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 665)


The alternation hierarchy for two-way Turing machines with a space bound in o(log) does not collapse below level five.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • Burchard von Braunmühl
    • 1
  1. 1.Institut für Informatik IUniversität BonnBonn 1

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