TU Wien Informatics

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Rudolf Freund

Dipl.-Ing. Mag.rer.nat. Dr.techn.

Research Focus

  • Logic and Computation: 100%

Research Areas

  • Infinite Words, Array Grammars, Formal Languages, Graph Grammars, Neural Nets, Molecular Computing, Membrane Computing (P Systems)
Rudolf Freund

Roles

  • Associate Professor
    Theory and Logic, E192-05
  • Curriculum Coordinator
    Bachelor Medical Informatics
  • Curriculum Coordinator
    Master Medical Informatics
  • Faculty Council
    Substitute Member
  • Curriculum Commission for Informatics
    Substitute Member
  • Curriculum Commission for Business Informatics
    Substitute Member
  • Affiliated
    Theory and Logic, E192-05

Contact

2023W

2024S

 

2022

2021

2020

2019

  • Variants of P systems with activation and blocking of rules / Alhazov, A., Freund, R., & Ivanov, S. (2019). Variants of P systems with activation and blocking of rules. Natural Computing. https://doi.org/10.1007/s11047-019-09747-5
    Download: PDF (447 KB)
  • Variants of Networks of Evolutionary Processors with Polarizations and a Small Number of Processors / Freund, R., Rogojin, V., & Verlan, S. (2019). Variants of Networks of Evolutionary Processors with Polarizations and a Small Number of Processors. International Journal of Foundations of Computer Science, 30(06n07), 1005–1027. https://doi.org/10.1142/s0129054119400264
  • Tissue P Systems with Anti-Cells / Freund, R. (2019). Tissue P Systems with Anti-Cells. 29. Theorietag Automaten und Formale Sprachen, Bremen, EU. http://hdl.handle.net/20.500.12708/86971
  • Reversibility and Determinism in P Systems / Freund, R. (2019). Reversibility and Determinism in P Systems. Reversibility in Programming, Languages, and Automata (RPLA), Porto, EU. http://hdl.handle.net/20.500.12708/86966
  • Blind and partially blind reister machines over groups / Freund, R., & Alhazov, A. (2019). Blind and partially blind reister machines over groups. NCMA 2019, Valencia, EU. http://hdl.handle.net/20.500.12708/86965
  • A Formal Framework for Spiking Neural P Systems / Freund, R., Verlan, S., & Alhazov, A. (2019). A Formal Framework for Spiking Neural P Systems. In G. Paun (Ed.), Proceedings of the 20th Intern. Conf. on Membrane Computing CMC20 (pp. 523–536). Editura Bibliostar. http://hdl.handle.net/20.500.12708/58052
  • Playing with Derivation Modes / Freund, R. (2019). Playing with Derivation Modes. In G. Paun (Ed.), Proceedings of the 20th Intern. Conf. on Membrane Computing CMC20 (pp. 109–123). http://hdl.handle.net/20.500.12708/58051
  • Playing with Derivation Modes and Halting Conditions / Freund, R. (2019). Playing with Derivation Modes and Halting Conditions. In Proceedings of Seventeenth Brainstorming Week on Membrane Computing (pp. 91–108). Artes Gr a cas Moreno, S.L. http://hdl.handle.net/20.500.12708/58039
  • (Tissue) P Systems with Anti-Membranes / Freund, R. (2019). (Tissue) P Systems with Anti-Membranes. In Proceedings of Seventeenth Brainstorming Week on Membrane Computing Sevilla, February 5-8, 2019 (pp. 29–40). Artes Gr a cas Moreno, S.L. http://hdl.handle.net/20.500.12708/58037
  • P Systems: from Anti-Matter to Anti-Rules / Freund, R. (2019). P Systems: from Anti-Matter to Anti-Rules. In Proceedings of Seventeenth Brainstorming Week on Membrane Computing (pp. 41–58). Artes Gr a cas Moreno, S.L. http://hdl.handle.net/20.500.12708/58038
  • Turing machines with activations of transitions / Freund, R., & Staiger, L. (2019). Turing machines with activations of transitions. In Eleventh Workshop on Non-Classical Models of Automata and Applications, NCMA (pp. 79–91). Österreichische Computer Gesellschaft. http://hdl.handle.net/20.500.12708/58029
  • Register machines over groups / Freund, R., Alhazov, A., & Ivanov, S. (2019). Register machines over groups. In Eleventh Workshop on Non-Classical Models of Automata and Applications, NCMA 2019 (pp. 31–46). Österreichische Computer Gesellschaft. http://hdl.handle.net/20.500.12708/58028
  • Tissue P Systems with Point Mutation Rules / Freund, R., Alhazov, A., Ivanov, S., & Verlan, S. (2019). Tissue P Systems with Point Mutation Rules. In G. Rozenberg (Ed.), Membrane Computing. 19th International Conference, CMC 2018 (pp. 33–57). Springer International Publishing Switzerland. http://hdl.handle.net/20.500.12708/58027
  • A General Framework for Sequential Grammars with Control Mechanisms / Freund, R. (2019). A General Framework for Sequential Grammars with Control Mechanisms. In M. Hospodar (Ed.), Descriptional Complexity of Formal Systems (pp. 1–34). https://doi.org/10.1007/978-3-030-23247-4_1
  • P Systems with Anti-Membranes / Freund, R., Alhazov, A., & Ivanov, S. (2019). P Systems with Anti-Membranes. In G. Paun (Ed.), Proceedings of the 20th Intern. Conf. on Membrane Computing CMC20 (pp. 249–256). http://hdl.handle.net/20.500.12708/57855
  • Beyond Generalized Multiplicities: Register Machines over Groups / Freund, R., Alhazov, A., & Ivanov, S. (2019). Beyond Generalized Multiplicities: Register Machines over Groups. In Seventeenth Brainstorming Week on Membrane Computing Sevilla, February 5 - 8, 2019 (pp. 1–28). Artes Gr a cas Moreno, S.L. http://hdl.handle.net/20.500.12708/57762
  • Eleventh Workshop on Non-Classical Models of Automata and Applications, NCMA 2019, Valencia, Spain, July 2-3, 2019 / Freund, R., & Holzer, M. (Eds.). (2019). Eleventh Workshop on Non-Classical Models of Automata and Applications, NCMA 2019, Valencia, Spain, July 2-3, 2019. OCG (Österreichische Computer Gesellschaft). http://hdl.handle.net/20.500.12708/24632

2018

  • Extended spiking neural P systems with white hole rules and their red–green variants / Alhazov, A., Freund, R., Ivanov, S., Oswald, M., & Verlan, S. (2018). Extended spiking neural P systems with white hole rules and their red–green variants. Natural Computing, 17(2), 297–310. https://doi.org/10.1007/s11047-017-9649-7
    Download: PDF (504 KB)
  • Activation and Blocking of Rules / Freund, R., Alhazov, A., & Ivanov, S. (2018). Activation and Blocking of Rules. The 5th Annual Rogozhin Lectures on Foundations of Informatics and Unconventional Computing Systems, Chisinau, Moldavien, Non-EU. http://hdl.handle.net/20.500.12708/86822
  • Input-Driven Tissue P Automata / Freund, R., Oswald, M., & Alhazov, A. (2018). Input-Driven Tissue P Automata. In G. Paun (Ed.), Sixteenth Brainstorming Week on Membrane Computing (pp. 39–58). Fénix Editora. http://hdl.handle.net/20.500.12708/57661
  • One-Membrane P Systems with Activation and Blocking of Rules. / Freund, R., Alhazov, A., & Ivanov, S. (2018). One-Membrane P Systems with Activation and Blocking of Rules. In G. Paun (Ed.), Sixteenth Brainstorming Week on Membrane Computing (pp. 23–38). Fénix Editora. http://hdl.handle.net/20.500.12708/57660
  • Introducing the Concept of Activation and Blocking of Rules in the General Framework for Regulated Rewriting in Sequential Grammars. / Freund, R., Alhazov, A., & Ivanov, S. (2018). Introducing the Concept of Activation and Blocking of Rules in the General Framework for Regulated Rewriting in Sequential Grammars. In G. Paun (Ed.), Sixteenth Brainstorming Week on Membrane Computing (pp. 1–22). Fénix Editora. http://hdl.handle.net/20.500.12708/57659
  • Unfair P Systems / Freund, R., Alhazov, A., & Ivanov, S. (2018). Unfair P Systems. In Proceedings of the Workshop on Membrane Computing at UCNC 2018. Fontainebleau, France June 25th, 2018 (pp. 63–71). TU Wien. http://hdl.handle.net/20.500.12708/57658
  • Hierarchical P systems with randomized right-hand sides of rules. / Freund, R., & Alhazov, A. (2018). Hierarchical P systems with randomized right-hand sides of rules. In M. Gheorghe (Ed.), Membrane Computing: 18th International Conference, CMC 2017, Bradford, UK, July 25-28, 2017, Revised Selected Papers (pp. 15–39). Springer International Publishing. http://hdl.handle.net/20.500.12708/57656
  • Control Mechanisms for Array Grammars on Cayley Grids / Freund, R. (2018). Control Mechanisms for Array Grammars on Cayley Grids. In S. Verlan (Ed.), Machines, Computations, and Universality (pp. 1–33). Springer. http://hdl.handle.net/20.500.12708/55493
  • Tissue P Systems with Point Mutation Rules / Freund, R. (2018). Tissue P Systems with Point Mutation Rules. In Proceedings of the 19th International Conference on Membrane Computing (pp. 29–50). Friedrich Schiller University Jena. http://hdl.handle.net/20.500.12708/57419
  • P Systems with Activation and Blocking of Rules / Freund, R. (2018). P Systems with Activation and Blocking of Rules. In S. Verlan (Ed.), Unconventional Computation and Natural Computation (pp. 1–15). LNCS/Springer. http://hdl.handle.net/20.500.12708/57417
  • Sequential Grammars with Activation and Blocking of Rules / Freund, R. (2018). Sequential Grammars with Activation and Blocking of Rules. In S. Verlan (Ed.), Machines, Computations, and Universality (pp. 51–68). Springer. http://hdl.handle.net/20.500.12708/57416
  • Unfair P Systems / Freund, R., Alhazov, A., & Ivanov, S. (2018). Unfair P Systems. In K. Reinhardt (Ed.), Theorietage 2018, Wittenberg, Technical Report 18-1, Universität Halle-Wittenberg (pp. 87–90). Universität Halle-Wittenberg. http://hdl.handle.net/20.500.12708/57095
  • Small Universal Reversible Counter Machines / Freund, R., Alhazov, A., & Verlan, S. (2018). Small Universal Reversible Counter Machines. In A. Adamatzky (Ed.), Emergence, Complexity and Computation (pp. 433–446). Springer International Publishing. http://hdl.handle.net/20.500.12708/29939
  • Chocolate P Automata / Freund, R., Oswald, M., & Alhazov, A. (2018). Chocolate P Automata. In G. Paun (Ed.), Enjoying Natural Computing (pp. 1–20). Springer International Publishing. https://doi.org/10.1007/978-3-030-00265-7_1
  • Proceedings of the Workshop on Membrane Computing at UCNC 2018. / Freund, R., & Ivanov, S. (Eds.). (2018). Proceedings of the Workshop on Membrane Computing at UCNC 2018. TU Wien. http://hdl.handle.net/20.500.12708/24536
  • Proceedings of the Tenth Workshop on Non-Classical Models of Automata and Applications, (NCMA) / Freund, R. (Ed.). (2018). Proceedings of the Tenth Workshop on Non-Classical Models of Automata and Applications, (NCMA). OCG (Österreichische Computer Gesellschaft). http://hdl.handle.net/20.500.12708/24454

2017

2016

2015

2014

  • P Systems with Matter and Anti-Matter / Freund, R., Paun, G., & Alhazov, A. (2014). P Systems with Matter and Anti-Matter. In A. Beckmann (Ed.), Tenth Conference on Computability in Europe, CiE 2014 Language, Life, Limits (p. 1). http://hdl.handle.net/20.500.12708/55728
  • Antimatter as a Frontier of Tractability in Membrane Computing / Freund, R., & Alhazov, A. (2014). Antimatter as a Frontier of Tractability in Membrane Computing. Fundamenta Informaticae, 134(1–2), 83–96. http://hdl.handle.net/20.500.12708/157271
  • Length P Systems / Freund, R., & Alhazov, A. (2014). Length P Systems. Fundamenta Informaticae, 134(1–2), 17–37. http://hdl.handle.net/20.500.12708/157270
  • Report on UCNC 2014 / Freund, R., & Hava, T. (2014). Report on UCNC 2014. Bulletin of the EATCS, 114. http://hdl.handle.net/20.500.12708/157234
  • Variants of P Automata / Freund, R. (2014). Variants of P Automata. In New Computing Paradigms - Workshop (p. 7). http://hdl.handle.net/20.500.12708/55729
  • Red-Green P Automata / Freund, R. (2014). Red-Green P Automata. In M. Gheorghe (Ed.), Membrane Computing - 15th International Conference, CMC 2014 (pp. 139–157). http://hdl.handle.net/20.500.12708/55391
  • P Systems with Toxic Objects / Freund, R., & Alhazov, A. (2014). P Systems with Toxic Objects. In M. Gheorghe (Ed.), Membrane Computing (pp. 99–125). https://doi.org/10.1007/978-3-319-14370-5_7
  • Promoters and Inhibitors in Purely Catalytic P Systems / Freund, R., Verlan, S., & Alhazov, A. (2014). Promoters and Inhibitors in Purely Catalytic P Systems. In M. Gheorghe (Ed.), Membrane Computing (pp. 126–138). https://doi.org/10.1007/978-3-319-14370-5_8
  • Priorities, Promoters and Inhibitors in Deterministic Non-cooperative P Systems / Freund, R., & Alhazov, A. (2014). Priorities, Promoters and Inhibitors in Deterministic Non-cooperative P Systems. In M. Gheorghe (Ed.), Membrane Computing (pp. 86–98). https://doi.org/10.1007/978-3-319-14370-5_6
  • P Systems with Anti-Matter / Freund, R., & Alhazov, A. (2014). P Systems with Anti-Matter. In M. Gheorghe & G. Rozenberg (Eds.), Membrane Computing (pp. 66–85). https://doi.org/10.1007/978-3-319-14370-5_5
  • Flattening in (Tissue) P Systems / Freund, R., & Verlan, S. (2014). Flattening in (Tissue) P Systems. In A. Alhazov (Ed.), Membrane Computing (pp. 173–188). LNCS/Springer. https://doi.org/10.1007/978-3-642-54239-8_13
  • P Systems with Anti-Matter / Freund, R., & Paun, G. (2014). P Systems with Anti-Matter. In G. Paun (Ed.), 12th Brainstorming Week on membrane Computing - Proceedings (pp. 169–183). Fenix Editora. http://hdl.handle.net/20.500.12708/55337
  • Red-Green P Automata / Freund, R., & Csuhaj-Varjú, E. (2014). Red-Green P Automata. In 12th Brainstorming Week on membrane Computing - Proceedings (pp. 73–79). Fenix Editora. http://hdl.handle.net/20.500.12708/55336
  • Length P Systems with a Lone Traveler / Freund, R., & Alhazov, A. (2014). Length P Systems with a Lone Traveler. In G. Paun (Ed.), 12th Brainstorming Week on membrane Computing - Proceedings (pp. 37–49). Fenix Editora. http://hdl.handle.net/20.500.12708/55335
  • Priorities, Promoters and Inhibitors in Deterministic Non-Cooperative P Systems / Freund, R., & Alhazov, A. (2014). Priorities, Promoters and Inhibitors in Deterministic Non-Cooperative P Systems. In G. Paun (Ed.), 12th Brainstorming Week on membrane Computing - Proceedings (pp. 27–37). Fenix Editora. http://hdl.handle.net/20.500.12708/55334
  • Matter and Anti-Matter in Membrane Systems / Freund, R. (2014). Matter and Anti-Matter in Membrane Systems. In G. Paun (Ed.), 12th Brainstorming Week on membrane Computing - Proceedings (pp. 1–27). Fenix Editora. http://hdl.handle.net/20.500.12708/55333
  • P Systems with Anti-Matter / Freund, R., & Alhazov, A. (2014). P Systems with Anti-Matter. In H. Bordihn (Ed.), 24.Theorietag “Automaten und Formale Sprachen” (pp. 19–23). Universität Potsdam. http://hdl.handle.net/20.500.12708/55332
  • Five Nodes Are Sufficient for Hybrid Networks of Evolutionary Processors to Be Computationally Complete / Freund, R., Alhazov, A., & Rogozhin, Y. (2014). Five Nodes Are Sufficient for Hybrid Networks of Evolutionary Processors to Be Computationally Complete. In O. H. Ibarra (Ed.), Unconventional Computation and Natural Computation (pp. 1–13). LNCS/Springer. https://doi.org/10.1007/978-3-319-08123-6_1
  • Cooperating Distributed Grammar Systems of Finite Index Working in Hybrid Modes / Freund, R., Fernau, H., & Holzer, M. (2014). Cooperating Distributed Grammar Systems of Finite Index Working in Hybrid Modes. In Z. Esik (Ed.), Electronic Proceedings in Theoretical Computer Science (pp. 246–260). EPTCS. https://doi.org/10.4204/eptcs.151.17
  • Small P Systems Defining Non-semilinear Sets / Freund, R., & Alhazov, A. (2014). Small P Systems Defining Non-semilinear Sets. In A. Adamatzky (Ed.), Automata, Computation, Universality (pp. 183–217). Springer International Publishing. http://hdl.handle.net/20.500.12708/28547
  • Generating and accepting P systems with minimal left and right insertion and deletion / Freund, R., Rogozhin, Y., & Verlan, S. (2014). Generating and accepting P systems with minimal left and right insertion and deletion. In J. M. Ferrandez (Ed.), Natural Computing (pp. 257–268). Springer. https://doi.org/10.1007/s11047-013-9396-3

2013

2012

  • Rechnen mit Molekülen / Freund, R., & Freund, M. (2012). Rechnen mit Molekülen. Institutskolloquium des Instituts für Informatik, Halle an der Saale, EU. http://hdl.handle.net/20.500.12708/85377
  • Language Operators for Multiset languages and Modal Logic / Freund, R., Kudlek, M., & Flick, N. E. (2012). Language Operators for Multiset languages and Modal Logic. NCMA, Wroclaw, EU. http://hdl.handle.net/20.500.12708/85374
  • Membrane Systems With Membrane Labels Changing in Time / Freund, R., & Alhazov, A. (2012). Membrane Systems With Membrane Labels Changing in Time. 10th Brainstoming Week on Membrane Computing, Sevilla, EU. http://hdl.handle.net/20.500.12708/85308
  • (Tissue) P Systems with Decaying Objects / Freund, R. (2012). (Tissue) P Systems with Decaying Objects. In E. Csuhaj-Varjú (Ed.), Proceedings of 13th Int.Conference of Membrane Computing (pp. 1–26). http://hdl.handle.net/20.500.12708/54687
  • P Systems with Minimal Left and Right Insertion and Deletion / Freund, R., Rogozhin, Y., & Verlan, S. (2012). P Systems with Minimal Left and Right Insertion and Deletion. In J. Durand-Lose (Ed.), 11th Int. Conference on Unconventional Computation and Natural Computation (pp. 82–93). Springer LNCS. http://hdl.handle.net/20.500.12708/54221
  • A formal framework for P systems with Dynamic Structure / Freund, R., & Verlan, S. (2012). A formal framework for P systems with Dynamic Structure. In E. Csuhaj-Varjú (Ed.), 13th International Conference on Membrane Computing (pp. 199–210). MTA Sztaki. http://hdl.handle.net/20.500.12708/54219
  • Time-varying sequential P systems / Freund, R., Oswald, M., & Verlan, S. (2012). Time-varying sequential P systems. In E. Csuhaj-Varjú (Ed.), 13th International Conference on Membrane Computing (pp. 99–114). MTA Sztaki. http://hdl.handle.net/20.500.12708/54218
  • Asynchronous and Maximally Parallel Deterministic Controlled Non-Cooperative P Systems Characterize NFIN / Freund, R., & Alhazov, A. (2012). Asynchronous and Maximally Parallel Deterministic Controlled Non-Cooperative P Systems Characterize NFIN. In E. Csuhaj-Varjú (Ed.), 13th International Conference on Membrane Computing (pp. 87–98). MTA Sztaki. http://hdl.handle.net/20.500.12708/54217
  • P Systems with Minimal Left and Right Insertion and Deletion / Freund, R., & Verlan, S. (2012). P Systems with Minimal Left and Right Insertion and Deletion. In M. Martinez (Ed.), Tenth Brainstorming Week on Membrane Computing (pp. 123–136). Fénix Editora. http://hdl.handle.net/20.500.12708/54215
  • A formal framework for P systems with Dynamic Structure / Freund, R., & Verlan, S. (2012). A formal framework for P systems with Dynamic Structure. In M. Martinez (Ed.), Tenth Brainstorming Week on Membrane Computing (pp. 111–122). Fénix Editora. http://hdl.handle.net/20.500.12708/54214
  • Asynchronous and Maximally Parallel Deterministic Controlled Non-Cooperative P Systems Characterize NFIN / Freund, R., & Alhazov, A. (2012). Asynchronous and Maximally Parallel Deterministic Controlled Non-Cooperative P Systems Characterize NFIN. In M. Martinez & G. Paun (Eds.), Tenth Brainstorming Week on Membrane Computing (pp. 25–34). Fénix Editora. http://hdl.handle.net/20.500.12708/54213
  • Self-Stabilization in Membrane Systems / Freund, R. (2012). Self-Stabilization in Membrane Systems. In G. Paun & A. Paun (Eds.), Tenth Brainstorming Week on Membrane Computing (pp. 1–10). Fénix Editora. http://hdl.handle.net/20.500.12708/54212

2011

  • Sequential and maximally parallel multiset rewriting: reversibility and determinism / Alhazov, A., Freund, R., & Morita, K. (2011). Sequential and maximally parallel multiset rewriting: reversibility and determinism. Natural Computing, 11(1), 95–106. https://doi.org/10.1007/s11047-011-9267-8
  • (Tissue) P systems working in the k - restricted minimally or maximally parallel transition mode / Freund, R., & Verlan, S. (2011). (Tissue) P systems working in the k - restricted minimally or maximally parallel transition mode. Natural Computing, 10(2), 821–833. https://doi.org/10.1007/s11047-010-9215-z
  • Preface / Freund, R., & Gheorghe, M. (2011). Preface. International Journal of Foundations of Computer Science, 22(1), 1–6. http://hdl.handle.net/20.500.12708/163359
  • Special Issue Natural Computing: Theory and Applications - Preface / Freund, R., Gheorghe, M., Marcus, S., Mitrana, V., & Pérez-Jiménez, M. (2011). Special Issue Natural Computing: Theory and Applications - Preface. International Journal of Foundations of Computer Science, 22(01), 1–6. https://doi.org/10.1142/s0129054111007770
  • A General Framework for Regulated Rewriting Based on the Applicability of Rules / Freund, R., Kogler, M., & Oswald, M. (2011). A General Framework for Regulated Rewriting Based on the Applicability of Rules. Workshop on Computation, Cooperation, and Life, Otava, Teschechien, EU. http://hdl.handle.net/20.500.12708/85306
  • A General Framework for Regulated Rewriting Based on the Applicability of Rules / Freund, R., Kogler, M., & Oswald, M. (2011). A General Framework for Regulated Rewriting Based on the Applicability of Rules. In J. Kelemen & A. Kelemenova (Eds.), Computation, Cooperation, and Life: Essays Dedicated to Gheorghe Paun on the Occasion of His 60th Birthday (pp. 35–53). Springer LNCS. https://doi.org/10.1007/978-3-642-20000-7_5
  • A General Framework for Regulated Rewriting / Freund, R. (2011). A General Framework for Regulated Rewriting. In J. Dassow & B. Truthe (Eds.), 21.Theorietag - Automaten und Formale Sprachen (pp. 37–41). Otto von Guericke Universität Magdeburg, Fakultät für Informatik. http://hdl.handle.net/20.500.12708/54099
  • Bildung 2.0 / Freund, R., & Taschner, R. (2011). Bildung 2.0. In Best Spirit: Best Practice (pp. 109–113). Braumüller. http://hdl.handle.net/20.500.12708/27529

2010

2009

  • P Automata with controlled use of minimal Communication rules / Freund, R., Kogler, M., & Verlan, S. (2009). P Automata with controlled use of minimal Communication rules. In H. Bordihn, R. Freund, & M. Holzer (Eds.), Workshop on Non-Classical Models for Automata and Applications (pp. 107–121). Österreichische Computer Ges. http://hdl.handle.net/20.500.12708/53045

2008

  • (Tissue) P systems using non-cooperative rules without halting conditions / Beyreder, M., & Freund, R. (2008). (Tissue) P systems using non-cooperative rules without halting conditions. In P. Frisco, D. W. Corne, & G. Paun (Eds.), Proceedings of the Ninth Workshop on Membrane Computing (pp. 85–94). http://hdl.handle.net/20.500.12708/52550
  • Regular ω-Languages defined by Extended Spiking Neural P Systems / Freund, R., & Oswald, M. (2008). Regular ω-Languages defined by Extended Spiking Neural P Systems. Fundamenta Informaticae, 83(1–2), 65–73. http://hdl.handle.net/20.500.12708/170200
  • CD Grammar Systems with Regular Start Conditions / Freund, R., & Oswald, M. (2008). CD Grammar Systems with Regular Start Conditions. International Journal of Foundations of Computer Science, 19(4), 767–779. http://hdl.handle.net/20.500.12708/170716
  • Extended Spiking Neural P Systems with Decaying Spikes and/or Total Spiking / Freund, R., Oswald, M., & Ionescu, M. (2008). Extended Spiking Neural P Systems with Decaying Spikes and/or Total Spiking. International Journal of Foundations of Computer Science, 19(5), 1223–1234. http://hdl.handle.net/20.500.12708/170707
  • Bio-Inspired Computing: DNA Computing and Membrane Computing / Freund, R. (2008). Bio-Inspired Computing: DNA Computing and Membrane Computing. BIRD’08 2nd International Conference on Bioinformatics Research and Development, Wien, Austria. http://hdl.handle.net/20.500.12708/84837
  • Membrane Systems / Freund, R. (2008). Membrane Systems. The 12th World Multi-Conference on Systemics, Cybernetics and Informatics: WMSCI 2008, Orlando, Florida, Non-EU. http://hdl.handle.net/20.500.12708/84836
  • An Integrating View on DNA Computing and Membrane Computing / Freund, R. (2008). An Integrating View on DNA Computing and Membrane Computing. 10th WSEAS Int. Conf. on MATHEMATICAL METHODS AND COMPUTATIONAL TECHNIQUES IN ELECTRICAL ENGINEERING (MMACTEE ’08), Sofia, Bulgaria, EU. http://hdl.handle.net/20.500.12708/84835
  • P Systems Working in the 1-restricted Minimally Parallel Derivation Mode / Freund, R. (2008). P Systems Working in the 1-restricted Minimally Parallel Derivation Mode. Workshop on Language-Theoretic Models of Decentralized and Distributed Systems, Opava, EU. http://hdl.handle.net/20.500.12708/84737
  • Extended Spiking neural P systems - variants for modeling the brain / Binder, A., Freund, R., & Oswald, M. (2008). Extended Spiking neural P systems - variants for modeling the brain. In M. Sugisaka & H. Tanaka (Eds.), Proc.13th International Symposium on Artificial Life and Robotics AROB13th 2008 (pp. 520–524). http://hdl.handle.net/20.500.12708/52549
  • (Tissue) P Systems Working in the k-Restricted Minimally Parallel Mode / Freund, R., & Verlan, S. (2008). (Tissue) P Systems Working in the k-Restricted Minimally Parallel Mode. In R. Freund, M. Oswald, E. Csuhaj-Varjú, & K. Salomaa (Eds.), International Workshop on Computing with Biomolecules (pp. 43–53). Oesterreichische Computer Gesellschaft. http://hdl.handle.net/20.500.12708/52400
  • (Tissue) P Systems Working in the k-Restricted Minimally Parallel Mode / Freund, R., & Verlan, S. (2008). (Tissue) P Systems Working in the k-Restricted Minimally Parallel Mode. In M. Holzer, M. Kutrib, & A. Malcher (Eds.), 18.Theorietag - Automaten und Formale Sprachen (pp. 49–55). Justus-Liebig Verlag. http://hdl.handle.net/20.500.12708/52399
  • Unconventional Computing / Unconventional Computing. (2008). In C. S. Calude, J. F. Costa, R. Freund, M. Oswald, & G. Rozenberg (Eds.), Lecture Notes in Computer Science. Springer LNCS. https://doi.org/10.1007/978-3-540-85194-3

2007

  • Partial Halting in P Systems Using Membrane Rules with Permitting Contexts / Alhazov, A., Freund, R., Oswald, M., & Verlan, S. (2007). Partial Halting in P Systems Using Membrane Rules with Permitting Contexts. In J. Durand-Lose & M. Margenstern (Eds.), Machines, Computations, and Universality (pp. 110–121). LNCS, Springer. http://hdl.handle.net/20.500.12708/176630
  • Refining the Nonterminal Complexity of Graph-controlled, Programmed and Matrix Grammars / Fernau, H., Freund, R., Oswald, M., & Reinhardt, K. (2007). Refining the Nonterminal Complexity of Graph-controlled, Programmed and Matrix Grammars. Journal of Automata, Languages and Combinatorics, 12(1/2), 117–138. http://hdl.handle.net/20.500.12708/170715
  • Cellular Automata and Parallel Array Systems / Freund, R., & Tafill, F. (2007). Cellular Automata and Parallel Array Systems. Fundamenta Informaticae, 78(3), 311–327. http://hdl.handle.net/20.500.12708/169696
  • Tissue P Systems and (MEM) Brane Systems with Mate and Drip Operations Working on Strings / Freund, R., & Oswald, M. (2007). Tissue P Systems and (MEM) Brane Systems with Mate and Drip Operations Working on Strings. Electronic Notes in Theoretical Computer Science (ENTCS), 171, 105–115. http://hdl.handle.net/20.500.12708/169695
  • Multiset random context grammars, checkers, and transducers / Cavaliere, M., Freund, R., Oswald, M., & Sburlan, D. (2007). Multiset random context grammars, checkers, and transducers. Theoretical Computer Science, 372, 136–151. http://hdl.handle.net/20.500.12708/169694
  • Partial Halting in P Systems / Freund, R., & Oswald, M. (2007). Partial Halting in P Systems. International Journal of Foundations of Computer Science, 18(6), 1215–1225. http://hdl.handle.net/20.500.12708/169693
  • Modelling Grammar Systems by Tissue P Systems Working in the Sequential Mode / Freund, R., & Oswald, M. (2007). Modelling Grammar Systems by Tissue P Systems Working in the Sequential Mode. Fundamenta Informaticae, 76(3), 305–323. http://hdl.handle.net/20.500.12708/169689
  • Symport/Antiport Systems with Partial Halting / Freund, R., & Oswald, M. (2007). Symport/Antiport Systems with Partial Halting. In M. Droste & M. Lohrey (Eds.), 17.Theorietag Automaten und Formale Sprachen (pp. 50–54). http://hdl.handle.net/20.500.12708/52095
  • Extended spiking neural P systems with spikes of limited lifetime / Freund, R., Ionescu, M., & Oswald, M. (2007). Extended spiking neural P systems with spikes of limited lifetime. In M. Droste & M. Lohrey (Eds.), 17.Theorietag Automaten und Formale Sprachen (pp. 45–49). http://hdl.handle.net/20.500.12708/52094
  • Modelling Logical Gates with ESNPA Systems / Binder, A., Freund, R., Oswald, M., & Vock, L. (2007). Modelling Logical Gates with ESNPA Systems. In M. Droste & M. Lohrey (Eds.), 17.Theorietag Automaten und Formale Sprachen (pp. 28–32). http://hdl.handle.net/20.500.12708/52092
  • Spiking neural P systems with inhibitory axons / Freund, R., & Oswald, M. (2007). Spiking neural P systems with inhibitory axons. In M. Sugisaka & H. Tamaka (Eds.), Proceedings of the 12th Interantional Symbosium on Artificial Life and Robotics (pp. 509–512). ISAROB 2007. http://hdl.handle.net/20.500.12708/52057
  • Polarizationless P Systems with Active Membranes Working in the Minimally Parallel Mode / Freund, R., Paun, G., & Pérez-Jiménez, M. (2007). Polarizationless P Systems with Active Membranes Working in the Minimally Parallel Mode. In S. Akl & C. S. Calude (Eds.), Unconventional Computation (pp. 62–76). LNCS, Springer. http://hdl.handle.net/20.500.12708/52056
  • CD Grammar Systems with Regular Start Conditions / Freund, R., & Oswald, M. (2007). CD Grammar Systems with Regular Start Conditions. In V. Geffert & G. Pighizzini (Eds.), Descriptional Complexity of Formal Systems (pp. 69–80). http://hdl.handle.net/20.500.12708/52046
  • Extended spiking neural P systems with decaying spikes and/or total spiking / Freund, R., Ionescu, M., & Oswald, M. (2007). Extended spiking neural P systems with decaying spikes and/or total spiking. In G. Vaszil (Ed.), Proceedings of the International Workshop Automata for Cellular and Molecular Computing (pp. 64–75). MTA Sztaki. http://hdl.handle.net/20.500.12708/52042
  • A formal framework for P systems / Freund, R., & Verlan, S. (2007). A formal framework for P systems. In G. Eleftherakis, P. Kefalas, & G. Paun (Eds.), Eighth Workshop on Membane Computing (WMC8) (pp. 317–330). South-East European Research Centre. http://hdl.handle.net/20.500.12708/52026

2006

  • P colonies and prescribed teams / Freund, R., & Oswald, M. (2006). P colonies and prescribed teams. International Journal of Computer Mathematics, 83(7), 569–592. http://hdl.handle.net/20.500.12708/173454
  • Membrane division, restricted membrane creation and object complexity in P systems / Alhazov, A., Freund, R., & Riscos-Núñez, A. (2006). Membrane division, restricted membrane creation and object complexity in P systems. International Journal of Computer Mathematics, 83(7), 529–548. http://hdl.handle.net/20.500.12708/173453
  • (Tissue) P Systems with Unit Rules and Energy Assigned to Membranes / Alhazov, A., Freund, R., Leporati, A., Oswald, M., & Zandron, C. (2006). (Tissue) P Systems with Unit Rules and Energy Assigned to Membranes. Fundamenta Informaticae, 74(4), 391–408. http://hdl.handle.net/20.500.12708/173452
  • Cell/symbol complexity of tissue P systems with symport/antiport rules / Alhazov, A., Freund, R., & Oswald, M. (2006). Cell/symbol complexity of tissue P systems with symport/antiport rules. International Journal of Foundations of Computer Science, 17(1), 3–25. http://hdl.handle.net/20.500.12708/173451
  • Routes and Products of Monoids / Mateescu, A., & Freund, R. (2006). Routes and Products of Monoids. Fundamenta Informaticae, 73(1–2), 205–211. http://hdl.handle.net/20.500.12708/173450
  • A small universal antiport P system with forbidden context / Freund, R., & Oswald, M. (2006). A small universal antiport P system with forbidden context. DCFS (Descriptional Complexity of Formal Systems), Las Cruces, New Mexico, USA, Non-EU. http://hdl.handle.net/20.500.12708/84575
  • Special variants of P systems with one catalyst in one membrane / Freund, R. (2006). Special variants of P systems with one catalyst in one membrane. DCFS (Descriptional Complexity of Formal Systems), Las Cruces, New Mexico, USA, Non-EU. http://hdl.handle.net/20.500.12708/84574
  • (Tissue) P Systems with Mate and Drip Operations and Cut and Paste Operations / Freund, R., & Oswald, M. (2006). (Tissue) P Systems with Mate and Drip Operations and Cut and Paste Operations. ESF Workshop on Automata and formal languages for DNA computation and bioinformatics, Como, Italien, EU. http://hdl.handle.net/20.500.12708/84573
  • Algebraic representation of regular array languages / Freund, R. (2006). Algebraic representation of regular array languages. ESF Exploratory Workshop: Advances on Two-dimensional Language Theory, Salerno, Italien, EU. http://hdl.handle.net/20.500.12708/84571
  • Syntactical pattern recognition with 2-dimensional array grammars and array automata / Freund, R. (2006). Syntactical pattern recognition with 2-dimensional array grammars and array automata. ESF Exploratory Workshop: Advances on Two-dimensional Language Theory, Salerno, Italien, EU. http://hdl.handle.net/20.500.12708/84570
  • (Mem)Brane Systems and Tissue P Systems with Mate and Drip Operations / Freund, R., & Oswald, M. (2006). (Mem)Brane Systems and Tissue P Systems with Mate and Drip Operations. In R. Freund & M. Oswald (Eds.), Proceedings 16.Theorietag Automaten und Formale Sprachen (pp. 51–56). http://hdl.handle.net/20.500.12708/51738
  • P Systems for Modelling Biological Processes in Living Cells / Freund, R., & Gschwandtner, T. (2006). P Systems for Modelling Biological Processes in Living Cells. In R. Freund & M. Oswald (Eds.), Proceedings 16.Theorietag Automaten und Formale Sprachen (pp. 46–50). http://hdl.handle.net/20.500.12708/51737
  • Modelling Distributed Systems by P Systems / Binder, A., Freund, R., Lojka, G., & Oswald, M. (2006). Modelling Distributed Systems by P Systems. In R. Freund & M. Oswald (Eds.), Proceedings 16.Theorietag Automaten und Formale Sprachen (pp. 22–27). http://hdl.handle.net/20.500.12708/51736
  • Membrane Systems with Attributes for Modelling Business Transactions / Freund, R., Oswald, M., & Schirk, T. (2006). Membrane Systems with Attributes for Modelling Business Transactions. In R. Freund & M. Oswald (Eds.), Proceedings 16.Theorietag Automaten und Formale Sprachen (pp. 57–62). http://hdl.handle.net/20.500.12708/51735
  • Extended Spiking Neural P Systems as Generating Devices for Strings and Vectors of Non-Negative Integers / Alhazov, A., Freund, R., Oswald, M., & Slavkovik, M. (2006). Extended Spiking Neural P Systems as Generating Devices for Strings and Vectors of Non-Negative Integers. In R. Freund & M. Oswald (Eds.), Proceedings 16.Theorietag Automaten und Formale Sprachen (pp. 17–21). http://hdl.handle.net/20.500.12708/51734
  • Tissue P systems with mate and drip operations / Freund, R., & Oswald, M. (2006). Tissue P systems with mate and drip operations. In N. Busi & C. Zandron (Eds.), MeCBIC2006 Workshop on Membrane Computing and Biologically Inspired Process Calculi (pp. 1–12). http://hdl.handle.net/20.500.12708/51733
  • Modeling the Dynamical Parallelism of Bio-Systems / Csuhaj-Varjú, E., Freund, R., & Sburlan, D. (2006). Modeling the Dynamical Parallelism of Bio-Systems. In H. J. Hoogeboom, G. Paun, & G. Rozenberg (Eds.), pre-proceedings of the 7th Workshop on Membrane Computing WMC7 (pp. 290–310). http://hdl.handle.net/20.500.12708/51732
  • Tissue P Systems with Communication Modes / Bernardini, F., & Freund, R. (2006). Tissue P Systems with Communication Modes. In H. J. Hoogeboom, G. Paun, & G. Rozenberg (Eds.), pre-proceedings of the 7th Workshop on Membrane Computing WMC7 (pp. 132–144). http://hdl.handle.net/20.500.12708/51731
  • Extended Spiking Neural P Systems Generating Strings and Vectors of Non-Negative Integers / Alhazov, A., Freund, R., Oswald, M., & Slavkovik, M. (2006). Extended Spiking Neural P Systems Generating Strings and Vectors of Non-Negative Integers. In H. J. Hoogeboom, G. Paun, & G. Rozenberg (Eds.), pre-proceedings of the 7th Workshop on Membrane Computing WMC7 (pp. 88–101). http://hdl.handle.net/20.500.12708/51730
  • Small Universal Antiport P Systems and Universal Multiset Grammars / Freund, R., & Oswald, M. (2006). Small Universal Antiport P Systems and Universal Multiset Grammars. In C. Graciani-Díaz, G. Paun, Á. Romero-Jiménez, & F. Sancho-Caparrini (Eds.), Proceedings of the Fourth Brainstorming Week on Membrane Computing, Volume II (pp. 51–64). Fénix Editora. http://hdl.handle.net/20.500.12708/51729
  • Particular Results for Variants of P Systems with One Catalyst in One Membrane / Freund, R. (2006). Particular Results for Variants of P Systems with One Catalyst in One Membrane. In C. Graciani-Díaz, G. Paun, Á. Romero-Jiménez, & F. Sancho-Caparrini (Eds.), Proceedings of the Fourth Brainstorming Week on Membrane Computing, Volume II (pp. 41–50). Fénix Editora. http://hdl.handle.net/20.500.12708/51728
  • On String Languages Generated by Spiking Neural P Systems / Chen, H., Freund, R., Ionescu, M., Paun, G., & Pérez-Jiménez, M. (2006). On String Languages Generated by Spiking Neural P Systems. In M. A. Gutiérrez-Naranjo, G. Paun, A. Riscos-Núñez, & F. J. Romero-Campero (Eds.), Proceedings of the Fourth Brainstorming Week on Membrane Computing, Volume I (pp. 169–194). Fénix Editora. http://hdl.handle.net/20.500.12708/51727
  • Multiset Random Context Grammars, Checkers, and Transducers / Cavaliere, M., Freund, R., Oswald, M., & Sburlan, D. (2006). Multiset Random Context Grammars, Checkers, and Transducers. In M. A. Gutiérrez-Naranjo, G. Paun, A. Riscos-Núñez, & F. J. Romero-Campero (Eds.), Proceedings of the Fourth Brainstorming Week on Membrane Computing, Volume I (pp. 113–132). Fénix Editora. http://hdl.handle.net/20.500.12708/51726
  • Two Universality Results for (Mem)Brane Systems / Besozzi, D., Busi, N., Franco, G., Freund, R., & Paun, G. (2006). Two Universality Results for (Mem)Brane Systems. In M. A. Gutiérrez-Naranjo, G. Paun, A. Riscos-Núñez, & F. J. Romero-Campero (Eds.), Proceedings of the Fourth Brainstorming Week on Membrane Computing, Volume I (pp. 49–62). Fénix Editora. http://hdl.handle.net/20.500.12708/51725
  • Symbol/Membrane Complexity of P Systems with Symport/Antiport Rules / Alhazov, A., Freund, R., & Oswald, M. (2006). Symbol/Membrane Complexity of P Systems with Symport/Antiport Rules. In R. Freund, G. Paun, G. Rozenberg, & A. Salomaa (Eds.), Membrane Computing · 6th International Workshop, WMC 2005, Vienna, Austria, July 18-21, 2005, Revised Selected and Invited Papers (pp. 97–114). Springer LNCS 3850. http://hdl.handle.net/20.500.12708/51724
  • Computational Power of Symport/Antiport: History, Advances, and Open Problems / Alhazov, A., Freund, R., & Rogozhin, Y. (2006). Computational Power of Symport/Antiport: History, Advances, and Open Problems. In R. Freund, G. Paun, G. Rozenberg, & A. Salomaa (Eds.), Membrane Computing · 6th International Workshop, WMC 2005, Vienna, Austria, July 18-21, 2005, Revised Selected and Invited Papers (pp. 1–31). Springer LNCS 3850. http://hdl.handle.net/20.500.12708/51723
  • Applications of membrane systems in distributed systems / Binder, A., Freund, R., Lojka, G., & Oswald, M. (2006). Applications of membrane systems in distributed systems. In L. Pan & G. Paun (Eds.), Pre-proc. of Int. Conf. on Bio-Inspired Computing - Theory and Applications, BIC-TA 2006, Membrane Computing Section (pp. 37–50). http://hdl.handle.net/20.500.12708/51722
  • How a membrane agent buys goods in a membrane store / Freund, R., Oswald, M., & Schirk, T. (2006). How a membrane agent buys goods in a membrane store. In L. Pan & G. Paun (Eds.), Pre-proc. of Int. Conf. on Bio-Inspired Computing - Theory and Applications, BIC-TA 2006, Membrane Computing Section (pp. 93–102). http://hdl.handle.net/20.500.12708/51721
  • Contextual Array Grammars / Freund, R., Paun, G., & Rozenberg, G. (2006). Contextual Array Grammars. In K. G. Subramanian (Ed.), Formal Models, Languages and Applications (pp. 112–136). World Scientific. http://hdl.handle.net/20.500.12708/25402
  • Membrane Computing · 6th International Workshop, WMC 2005, Vienna, Austria, July 18-21, 2005, Revised Selected and Invited Papers / Freund, R., Paun, G., Rozenberg, G., & Salomaa, A. (Eds.). (2006). Membrane Computing · 6th International Workshop, WMC 2005, Vienna, Austria, July 18-21, 2005, Revised Selected and Invited Papers. Springer LNCS 3850. http://hdl.handle.net/20.500.12708/22337

2005

  • P systems with active membranes and without polarizations / Freund, R., & Paun, A. (2005). P systems with active membranes and without polarizations. Soft Computing, 9(9), 657–663. http://hdl.handle.net/20.500.12708/173352
  • Representations of Recursively Enumerable Array Languages by Contextual Array Grammars / Fernau, H., Freund, R., & Holzer, M. (2005). Representations of Recursively Enumerable Array Languages by Contextual Array Grammars. Fundamenta Informaticae, 64(1–4), 159–170. http://hdl.handle.net/20.500.12708/173351
  • Tissue P Systems with Channel States / Freund, R., Paun, G., & Pérez-Jiménez, M. (2005). Tissue P Systems with Channel States. Theoretical Computer Science, 330, 101–116. http://hdl.handle.net/20.500.12708/173350
  • Modelling Artificial Life by Attributed Eco-array Grammars / Binder, A., Freund, R., & Oswald, M. (2005). Modelling Artificial Life by Attributed Eco-array Grammars. Artificial Life and Robotics, 9(1), 63–66. http://hdl.handle.net/20.500.12708/173349
  • P Systems Working in the Sequential Mode on Arrays and Strings / Freund, R. (2005). P Systems Working in the Sequential Mode on Arrays and Strings. International Journal of Foundations of Computer Science, 16(4), 663–682. http://hdl.handle.net/20.500.12708/173348
  • Optimal Results for the Computational Completeness of Gemmating (Tissue) P Systems / Freund, R., Oswald, M., & Paun, A. (2005). Optimal Results for the Computational Completeness of Gemmating (Tissue) P Systems. International Journal of Foundations of Computer Science, 16(5), 929–942. http://hdl.handle.net/20.500.12708/173344
  • Computationally Universal P Systems without Priorities: Two Catalysts are Sufficient / Freund, R., Kari, L., Oswald, M., & Sosik, P. (2005). Computationally Universal P Systems without Priorities: Two Catalysts are Sufficient. Theoretical Computer Science, 330, 251–266. http://hdl.handle.net/20.500.12708/173321
  • Membrane Computing / Freund, R. (2005). Membrane Computing. 4th WSEAS International Conference on ARTIFICIAL INTELLIGENCE, KNOWLEDGE ENGINEERING and DATABASES (AIKED `05), Salzburg, Austria. http://hdl.handle.net/20.500.12708/84457
  • Symbol/Membrane Complexity of P Systems with Symport/Antiport Rules / Alhazov, A., Freund, R., & Oswald, M. (2005). Symbol/Membrane Complexity of P Systems with Symport/Antiport Rules. In F. Freund, G. Lojka, M. Oswald, & G. Paun (Eds.), Preproceedings of the 6th International Workshop on Membrane Computing WMC6 (pp. 123–146). http://hdl.handle.net/20.500.12708/51167
  • Computational Power of Symport/Antiport: History, Advances and Open Problems / Alhazov, A., Freund, R., & Rogozhin, Y. (2005). Computational Power of Symport/Antiport: History, Advances and Open Problems. In R. Freund, G. Lojka, M. Oswald, & G. Paun (Eds.), Preproceedings of the 6th International Workshop on Membrane Computing WMC6 (pp. 44–78). http://hdl.handle.net/20.500.12708/51166
  • Tissue P Systems with Antiport Rules and Small Numbers of Symbols and Cells / Alhazov, A., Freund, R., & Oswald, M. (2005). Tissue P Systems with Antiport Rules and Small Numbers of Symbols and Cells. In C. De Felice & A. Restivo (Eds.), Developments in Language Theory. 9th International Conference, DLT 2005 (pp. 100–111). Springer. http://hdl.handle.net/20.500.12708/51165
  • P Systems Generating Trees / Freund, R., Oswald, M., & Paun, A. (2005). P Systems Generating Trees. In G. Mauri, G. Paun, M. Pérez-Jiménez, G. Rozenberg, & A. Salomaa (Eds.), Membrane Computing. International Workshop, WMC 2004 (pp. 309–319). Springer, LNCS. http://hdl.handle.net/20.500.12708/51164
  • On the Efficiency of P Systems with Active Membranes and Two Polarizations / Alhazov, A., & Freund, R. (2005). On the Efficiency of P Systems with Active Membranes and Two Polarizations. In G. Mauri, G. Paun, M. Pérez-Jiménez, G. Rozenberg, & A. Salomaa (Eds.), Membrane Computing. International Workshop, WMC 2004 (pp. 146–160). Springer, LNCS. http://hdl.handle.net/20.500.12708/51163
  • Asynchronous P Systems and P Systems Working in the Sequential Mode / Freund, R. (2005). Asynchronous P Systems and P Systems Working in the Sequential Mode. In G. Mauri, G. Paun, M. Pérez-Jiménez, G. Rozenberg, & A. Salomaa (Eds.), Membrane Computing. International Workshop, WMC 2004 (pp. 36–62). Springer, LNCS. http://hdl.handle.net/20.500.12708/51162
  • Sequential P Systems with Unit Rules and Energy Assigned to Membranes / Freund, R., Leporati, A., Oswald, M., & Zandron, C. (2005). Sequential P Systems with Unit Rules and Energy Assigned to Membranes. In M. Margenstern (Ed.), Machines, Computations, and Universality (pp. 200–210). Springer, LNCS. http://hdl.handle.net/20.500.12708/51161
  • Computational Completeness of P Systems with Active Membranes and Two Polarizations / Alhazov, A., Freund, R., & Paun, G. (2005). Computational Completeness of P Systems with Active Membranes and Two Polarizations. In M. Margenstern (Ed.), Machines, Computations, and Universality (pp. 82–92). Springer, LNCS. http://hdl.handle.net/20.500.12708/51160
  • Refining the Nonterminal Complexity of Graph-controlled Grammars / Fernau, H., Freund, R., Oswald, M., & Reinhardt, K. (2005). Refining the Nonterminal Complexity of Graph-controlled Grammars. In C. Mereghetti, B. Palano, G. Pighizzini, & D. Wotschke (Eds.), Seventh International Workshop on Descriptional Complexity of Formal Systems, Proceedings (pp. 110–121). http://hdl.handle.net/20.500.12708/51159
  • P Colonies Working in the Maximally Parallel and in the Sequential Mode / Freund, R., & Oswald, M. (2005). P Colonies Working in the Maximally Parallel and in the Sequential Mode. In G. Ciobanu & G. Paun (Eds.), Proceedings of the 1st International Workshop on Theory and Application of P Systems (pp. 49–56). http://hdl.handle.net/20.500.12708/51158
  • One and Two Polarizations, Membrane Creation and Objects Complexity in P Systems / Alhazov, A., Freund, R., & Riscos-Núñez, A. (2005). One and Two Polarizations, Membrane Creation and Objects Complexity in P Systems. In G. Ciobanu & G. Paun (Eds.), Proceedings of the 1st International Workshop on Theory and Application of P Systems (pp. 9–18). ??? http://hdl.handle.net/20.500.12708/51157
  • Tissue P Systems with Symport/Antiport Rules of One Symbol are Computationally Universal / Freund, R., & Oswald, M. (2005). Tissue P Systems with Symport/Antiport Rules of One Symbol are Computationally Universal. In M. A. Gutiérrez-Naranjo, G. Paun, & M. Pérez-Jiménez (Eds.), Cellular Computing (Complexity Aspects) (pp. 187–200). Fénix Editora. http://hdl.handle.net/20.500.12708/51153
  • Some Optimal Results on Symport/Antiport P Systems with Minimal Cooperation / Alhazov, A., Freund, R., & Rogozhin, Y. (2005). Some Optimal Results on Symport/Antiport P Systems with Minimal Cooperation. In M. A. Gutiérrez-Naranjo, G. Paun, & M. Pérez-Jiménez (Eds.), Cellular Computing (Complexity Aspects) (pp. 23–36). Fénix Editora. http://hdl.handle.net/20.500.12708/51152
  • Tissue P Systems with Antiport Rules and Small Numbers of Symbols and Cells / Alhazov, A., Freund, R., & Oswald, M. (2005). Tissue P Systems with Antiport Rules and Small Numbers of Symbols and Cells. In M. A. Gutiérrez-Naranjo, G. Paun, & M. Pérez-Jiménez (Eds.), Cellular Computing (Complexity Aspects) (pp. 7–22). Fénix Editora. http://hdl.handle.net/20.500.12708/51151
  • Matrix Languages, Register Machines, Vector Addition Systems / Freund, R., Ibarra, O. H., Paun, G., & Yen, H.-C. (2005). Matrix Languages, Register Machines, Vector Addition Systems. In M. A. Gutiérrez-Naranjo, A. Riscos-Núñez, F. J. Romero-Campero, & D. Sburlan (Eds.), Third Brainstorming Week on Membrane Computing (pp. 155–168). Fénix Editora. http://hdl.handle.net/20.500.12708/51150
  • Event-related Outputs of Computations in P Systems / Cavaliere, M., Freund, R., Leitsch, A., & Paun, G. (2005). Event-related Outputs of Computations in P Systems. In M. A. Gutiérrez-Naranjo, A. Riscos-Núñez, F. J. Romero-Campero, & D. Sburlan (Eds.), Third Brainstorming Week on Membrane Computing (pp. 107–122). Fénix Editora. http://hdl.handle.net/20.500.12708/51149
  • P Systems with One Membrane and Symport/Antiport Rules of Five Symbols are Coputationally Complete / Alhazov, A., & Freund, R. (2005). P Systems with One Membrane and Symport/Antiport Rules of Five Symbols are Coputationally Complete. In M. A. Gutiérrez-Naranjo, A. Riscos-Núñez, F. J. Romero-Campero, & D. Sburlan (Eds.), Third Brainstorming Week on Membrane Computing (pp. 19–28). Fénix Editora. http://hdl.handle.net/20.500.12708/51148
  • Optimal Nonterminal Complexity of Graph-controlled Grammars / Fernau, H., Freund, R., Oswald, M., & Reinhardt, K. (2005). Optimal Nonterminal Complexity of Graph-controlled Grammars. In H. Fernau (Ed.), 15. Theorietag der GI Fachgruppe 0.1.5 Automaten und Formale Sprachen (pp. 13–17). http://hdl.handle.net/20.500.12708/51147
  • Membrane Systems as a Model for Distributed Computing / Binder, A., Freund, R., Lojka, G., & Oswald, M. (2005). Membrane Systems as a Model for Distributed Computing. In H. Fernau (Ed.), 15. Theorietag der GI Fachgruppe 0.1.5 Automaten und Formale Sprachen (pp. 1–5). http://hdl.handle.net/20.500.12708/51146

2004

2003

  • Complexity of P Automata with Catalysts / Freund, R., & Oswald, M. (2003). Complexity of P Automata with Catalysts. Annual Meeting of Project MolCoNet, Budapest, Austria. http://hdl.handle.net/20.500.12708/84256
  • P Systems with Elementary Graph Productions / Freund, R., & Oswald, M. (2003). P Systems with Elementary Graph Productions. EMCC Spring Meeting, Turku, Finland, Austria. http://hdl.handle.net/20.500.12708/84255

2002

 

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