Polarizationless P systems with active membranes working in the minimally parallel mode

Authors:
Rudolf Freund;Gheorghe Păun;Mario J. Pérez-Jiménez
Affiliations:
Institute of Computer Languages, Vienna University of Technology, Wien, Austria;Institute of Mathematics of the Romanian Academy, Bucuresti, Romania, and Department of Computer Science and Artificial Intelligence, University of Sevilla, Sevilla, Spain;epartment of Computer Science and Artificial Intelligence, University of Sevilla, Sevilla, Spain
Venue:
UC'07 Proceedings of the 6th international conference on Unconventional Computation
Year:
2007

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Abstract

We investigate the computing power and the efficiency of P systems with active membranes without polarizations, working in the minimally parallel mode. Such systems are shown to be computationally complete even when using only rules handling single objects in the membranes and avoiding the division of non-elementary membranes. Moreover, we elaborate an algorithm for solving NP-complete problems, yet in this case we need evolution rules generating at least two objects as well as rules for non-elementary membrane division.