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In membrane computing, P system has proved to be a rich framework for handling a variety of problems arising in different areas. In this note we examine an array-rewriting P system for rectangular picture array generation. This system makes use of Pure 2D context-free grammar rules in its regions. We obtain certain comparison results that bring out the suitability of this P system model in increasing...
Motivated by the structure and functioning of the living cell, a new computing model, called P system, was proposed in the area of membrane computing. Among several areas of application of P systems, one area is concerned with generation of picture array languages. Ceterchi et al. initially proposed array-rewriting P systems by extending the notion of string-rewriting P-systems. On the other hand...
A new theoretical model of grammatical picture generation called extended 2D context-free picture grammar (E2DCFPG) generating rectangular picture arrays of symbols is introduced. This model which allows variables in the grammar and uses the squeezing mechanism of forming the picture language over terminal symbols, is an extension of the pure 2D context-free picture grammar (P2DCFPG)[13]. The extended...
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