P Complexity Parallel Complexity Theory (disambiguation)

P Complexity Parallel Complexity Theory may refer to:

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  P vs NP (complexity theory)

  The major complexity-theory question about whether problems solvable in polynomial time (P) can also be solved in nondeterministic polynomial time (NP).

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  NC (Nick’s Class) — parallel complexity

  A standard complexity class for problems solvable in polylogarithmic time using a polynomial number of processors (capturing “efficient parallel time”).

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  PTIME (parallel complexity model) — PRAM-based complexity

  Parallel complexity studies time/processor tradeoffs under models like PRAM; “parallel complexity” depends on the chosen parallel machine model.

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  Complexity classes for parallel computation: P-Complete vs NC

  A line of results comparing classes and hardness notions for parallel computation, often framed via P-completeness and reducibility to NC.