On Sparse Sets in NP-P

  • Authors:
  • Juris Hartmanis

  • Affiliations:
  • -

  • Venue:
  • On Sparse Sets in NP-P
  • Year:
  • 1982

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Abstract

The main result of this note shows that there exist sparse sets in $NP$ that are not in $P$ if and only if NEXPTIME differs from EXPTIME. Several other results are derived about the complexity of very sparse sets in $NP-P$ and an interpretation of the meaning of these results is given in terms of the complexity of solving ``individual instances'''' of problems in $NP-P$.