Rewriting P Systems with Conditional Communication: Improved Hierarchies

keywords: Membrane computing, rewriting P systems, recursively enumerable language
We consider here a variant of rewriting P systems citecond, where communication is controlled by the contents of the strings, not by the evolution rules used for obtaining these strings. Some new characterizations of recursively enumerable languages are obtained by means of P systems with a small number of membranes, which improves some of the known results from citecond and citemadhu.
reference: Vol. 27, 2008, No. 3+, pp. 453–465