Chapter

DNA Computing

Volume 4287 of the series Lecture Notes in Computer Science pp 33-46

P Systems with Active Membranes Characterize PSPACE

  • Petr SosíkAffiliated withFacultad de Informática, Universidad Politécnica de Madrid – UPMInstitute of Computer Science, Silesian University
  • , Alfonso Rodríguez-PatónAffiliated withFacultad de Informática, Universidad Politécnica de Madrid – UPM

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Abstract

A P system is a natural computing model inspired by information processes in cells and a control role of cellular membranes. We show that uniform families of P systems with active membranes are able to solve, in polynomial time, exactly the class of decisional problems PSPACE. Similar results were achieved also with other models of bio-inspired computers, such as DNA computing. Together they suggest that PSPACE naturally characterizes the computational potential of biological information processing.