A Case Study in (Mem)Brane Computation: Generating Squares of Natural Numbers

The aim of this paper is to start an investigation and a comparison of the expressiveness of the two most relevant formalisms inspired by membranes interactions, namely, P systems and Brane Calculi. We compare the two formalisms with respect to their ability to act as generator devices. In particular, we show different ways of generating the set in P systems and in Brane Calculi.