Abstract
We prove that any set of numbers containing zero generated by symport/antiport P systems with two membranes and minimal cooperation is finite (for both symport/antiport P systems and for purely symport P systems). On the other hand, one additional object in the output membrane allows symport/antiport P systems (purely symport P systems) with two membranes and minimal cooperation generate any recursively enumerable sets of natural numbers without zero. Thus we improve our previous results for symport/antiport P systems with two membranes and minimal cooperation from three “garbage” objects down to one object and for purely symport P systems from six objects down to one object. Thus we show the optimality of these results.
The authors acknowledge the project 06.411.03.04P from the Supreme Council for Science and Technological Development of the Academy of Sciences of Moldova.
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Alhazov, A., Rogozhin, Y. (2006). Towards a Characterization of P Systems with Minimal Symport/Antiport and Two Membranes. In: Hoogeboom, H.J., Păun, G., Rozenberg, G., Salomaa, A. (eds) Membrane Computing. WMC 2006. Lecture Notes in Computer Science, vol 4361. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11963516_9
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DOI: https://doi.org/10.1007/11963516_9
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