Characterizations of context-sensitive languages and other language classes in terms of symport/antiport P systems

@article{Ibarra2006CharacterizationsOC,
  title={Characterizations of context-sensitive languages and other language classes in terms of symport/antiport P systems},
  author={Oscar H. Ibarra and Gheorghe Paun},
  journal={Theor. Comput. Sci.},
  year={2006},
  volume={358},
  pages={88-103}
}
We give “syntactic” characterizations of context-sensitive languages (CSLs) in terms of some restricted models of symport/antiport P systems. These are the first such characterizations of CSLs in terms of P systems. In particular, we show the following for any language L over a binary alphabet: 1. Let m be any integer ≥ 1. Then L is a CSL if and only if it can be accepted by a restricted symport/antiport P system with m membranes and multiple number of symbols (objects). Moreover, holding the… CONTINUE READING