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Seeking computational efficiency boundaries: the Păun’s conjecture

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Abstract

In 2005, Gh. Păun raised an interesting question concerning the role of electrical charges in P systems with active membranes from a complexity point of view. Specifically, he formulated a question about the computational efficiency of polarizationless P systems with dissolution rules and division rules only for elementary membranes. Several approaches have been carried out, and some partial answers have been given. This is probably the most important open problem in computational complexity theory in the framework of Membrane Computing. The study of the efficiency of membrane systems has been a very fruitful area, providing not only the above-stated partial answers, but also several frontiers of efficiency to tackle theP vsNP problem. In this work, a survey on classical and current results on complexity aspects is given, emphasizing on the frontiers of efficiency and the ingredients taken into account for each of them.

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ArticleOpen access01 September 2022

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Notes

  1. Terms uniform and semi-uniform are used similarly to how they are used in circuit complexity [50].

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Acknowledgements

This work was supported in part by the research project TIN2017-89842-P, cofinanced by Ministerio de Economía, Industria y Competitividad (MINECO) of Spain, through the Agencia Estatal de Investigación (AEI), and by Fondo Europeo de Desarrollo Regional (FEDER) of the European Union.

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  1. Research Group on Natural Computing Dept. of Computer Science and Artificial Intelligence, Universidad de Sevilla E.T.S.I. Informática, Avda. Reina Mercedes s/n, 41012, Sevilla, Spain

    David Orellana-Martín & Agustín Riscos-Núñez

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  1. David Orellana-Martín

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Correspondence toDavid Orellana-Martín.

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Orellana-Martín, D., Riscos-Núñez, A. Seeking computational efficiency boundaries: the Păun’s conjecture.J Membr Comput2, 323–331 (2020). https://doi.org/10.1007/s41965-020-00058-8

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