Shallow Non-confluent P Systems

  • Alberto Leporati
  • Luca Manzoni
  • Giancarlo Mauri
  • Antonio E. Porreca
  • Claudio ZandronEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10105)


We prove that non-confluent (i.e., strongly nondeterministic) P systems with active membranes working in polynomial time are able to simulate polynomial-space nondeterministic Turing machines, and thus to solve all \({\mathbf{PSPACE }}\) problems. Unlike the confluent case, this result holds for shallow P systems. In particular, depth 1 (i.e., only one membrane nesting level and using elementary membrane division only) already suffices, and neither dissolution nor send-in communication rules are needed.


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Alberto Leporati
    • 1
  • Luca Manzoni
    • 1
  • Giancarlo Mauri
    • 1
  • Antonio E. Porreca
    • 1
  • Claudio Zandron
    • 1
    Email author
  1. 1.Dipartimento di Informatica, Sistemistica e ComunicazioneUniversità degli Studi di Milano-BicoccaMilanoItaly

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