13th International Conference on Membrane Computing - MTA Sztaki

R. Freund
Acknowledgements
The author gratefully acknowledges the useful suggestions and remarks from
Erzsébet Csuhaj-Varjú, Marion Oswald, and Sergey Verlan during the preparation
of this paper; special thanks go to Marion and Sergey, as many definitions
and results presented in this paper came up from long discussions with them
and were taken over from joint papers.
References
1. A. Alhazov, R. Freund, M. Oswald, M. Slavkovik: Extended spiking neural P systems
generating strings and vectors of non-negative integers. In: H.J. Hoogeboom,
Gh. Păun, G. Rozenberg (Eds.): Pre-proceedings of Membrane Computing, <strong>International</strong>
Workshop, WMC7, Leiden, The Netherlands, 2006, 88–101.
2. F. Bernardini, M. Gheorghe, M. Margenstern, S. Verlan: Networks of cells and
Petri nets. In: M.A. Gutiérrez-Naranjo, Gh. Păun, A. Romero-Jiménez, A. Riscos-
Núñez (Eds.): Proc. Fifth Brainstorming Week on Membrane Computing, Sevilla,
2007, 33–62.
3. R. Brijder, A. Ehrenfeucht, M. G. Main, G. Rozenberg: A tour of reaction systems.
Int. J. Found. Comput. Sci. 22 (7), 2011, 1499–1517.
4. E. Csuhaj-Varjú: Networks of language processors. In: Current Trends in Theoretical
Computer Science, 2001, 771–790.
5. J. Dassow, Gh. Păun: Regulated Rewriting in Formal Language Theory. Springer-
Verlag, 1989.
6. J. Dassow, Gh. Păun: On the power of membrane computing, Journal of Universal
Computer Science 5 (2), 1999, 33–49.
7. R. Freund: Transition and halting modes for tissue P systems. In: Gh. Păun, M.J.
Pérez-Jiménez, A. Riscos-Núñez (Eds.): Tenth Workshop on Membrane Computing,
WMC10, Curtea de Argeş, Romania, 24 – 27 August, 2009. RGNC REPORT
3/2009, Research Group on Natural Computing, Reports Universidad de Sevilla,
2009, 19–30.
8. R. Freund, M. Ionescu, M. Oswald: Extended Spiking Neural P Systems with
Decaying Spikes and/or Total Spiking. Int. J. Found. Comput. Sci. 19 (5), 2008,
1223–1234.
9. R. Freund, L. Kari, M. Oswald, P. Sosík: Computationally universal P systems
without priorities: two catalysts are sufficient. Theoretical Computer Science 330,
2005, 251–266.
10. R. Freund, S. Verlan: A formal framework for P systems. In: G. Eleftherakis, P.
Kefalas, Gh. Păun (Eds.): Pre-proceedings of Membrane Computing, <strong>International</strong>
Workshop – WMC8, Thessaloniki, Greece, 2007, 317–330.
11. R. Freund, S. Verlan: (Tissue) P systems working in the k-restricted minimally or
maximally parallel transition mode. Natural Computing 10 (2), 2011, 821–833.
12. M. Ionescu, Gh. Păun, T. Yokomori: Spiking neural P systems. Fundamenta Informaticae
71 (2–3), 2006, 279–308.
13. M. Kudlek, C. Martín-Vide, Gh. Păun: Toward a formal macroset theory. In:
C.S. Calude, Gh. Păun, G. Rozenberg, A. Salomaa (Eds.): Multiset Processing –
Mathematical, Computer Science and Molecular Computing Points of View. Lecture
Notes in Computer Science 2235, Springer-Verlag, 2001, 123–134.
34