Journal of Computer and System Sciences
Handbook of Formal Languages
Membrane Computing: An Introduction
Membrane Computing: An Introduction
WMC-CdeA '02 Revised Papers from the International Workshop on Membrane Computing
Time and Synchronization in Membrane Systems
Fundamenta Informaticae - Contagious Creativity - In Honor of the 80th Birthday of Professor Solomon Marcus
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This paper proposes a new model of P systems where the rules are activated by the presence/absence of certain objects in the neighboring regions. We obtain the computational completeness considering only two membranes, external inhibitors, and carriers. Leaving the carriers apart we obtain equivalence with ET0L systems in terms of number sets.