The quasilinear isomorphism challenge

  • Authors:
  • Kenneth W. Regan;Jie Wang

  • Affiliations:
  • -;-

  • Venue:
  • ACM SIGACT News
  • Year:
  • 1994

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Abstract

We show that all the basic facts about the Berman-Hartmanis Isomorphism Conjecture carry over from polynomial to quasilinear time bounds. However, we show that the connection between unique-accepting NTMs and one-way functions, which underlies much subsequent work on the B-H conjecture, breaks down for quasilinear time under relativizations. Hence we have a whole new ballgame, on a tighter playing field.