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fpras_bpp (504B)


      1 # FPRAS BPP
      2 
      3 [theorem]: if a [counting_problem] admits an [fpras], then the corresponding [decision_problem] of testing if the count is >0 is in [bpp]
      4 - for [satisfiability_boolean] for instance:
      5   - if [sharp_satisfiability] admits an [fpras], then [satisfiability_boolean] is in [bpp]
      6 - this is specific to >0 and does not work, say, for <2^n (problem of relative
      7   error)
      8 
      9 Proof: with proba 3/4 your [fpras] "works", and "works" here means "returns exactly the correct value"
     10 
     11 Up: [result] on [fpras]