• Artículo
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      Recognizer P Systems with Antimatter 

      Díaz Pernil, Daniel; Alhazov, Artiom; Freund, Rudolf; Gutiérrez Naranjo, Miguel Ángel; Leporati, Alberto (Romanian Academy, Section for Information Science and Technology, 2015)
      In this paper, we consider recognizer P systems with antimatter and the in uence of the matter/antimatter annihilation ...
    • Ponencia
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      Red-Green P Automata 

      Aman, Bogdan; Csuhaj Varjú, Erzsébet; Freund, Rudolf (Fénix Editora, 2014)
      In this short note we extend the notion of red-green Turing machines to speci c variants of P automata. Acceptance and ...
    • Ponencia
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      Self-Stabilization in Membrane Systems 

      Alhazov, Artiom; Antoniotti, Marco; Freund, Rudolf; Leporati, Alberto; Mauri, Giancarlo (Fénix Editora, 2012)
      In this paper we study a notion of self-stabilization, inspired from biology and engineering. Multiple variants of ...
    • Ponencia
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      Semilinear Sets, Register Machines, and Integer Vector Addition (P) Systems 

      Alhazov, Artiom; Belingheri, Omar; Freund, Rudolf; Ivanov, Sergiu; Porreca, Antonio E.; Zandron, Claudio (Fénix, 2016)
      In this paper we consider P systems working with multisets with integer multiplicities. We focus on a model in which rule ...
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      Sequential P Systems with Unit Rules and Energy Assigned to Membranes 

      Freund, Rudolf; Leporati, Alberto; Oswald, Marion; Zandron, Claudio (Fénix Editora, 2004)
      We introduce a new variant of membrane systems where the rules are directly assigned to membranes (and not to the regions ...
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      Small Universal Antiport P Systems and Universal Multiset Grammars 

      Freund, Rudolf; Oswald, Marion (Fénix Editora, 2006)
      Based on the construction of a universal register machine we construct a universal antiport P system working with 31 rules ...
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      Solving SAT with Antimatter in Membrane Computing 

      Díaz Pernil, Daniel; Alhazov, Artiom; Freund, Rudolf; Gutiérrez Naranjo, Miguel Ángel (Fénix Editora, 2015)
      The set of NP-complete problems is split into weakly and strongly NP- complete ones. The di erence consists in the in uence ...
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      Time-freeness and Clock-freeness and Related Concepts in P Systems 

      Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu; Pan, Linqiang; Song, Bosheng (Fenix Editora, 2017)
      In the majority of models of P systems, rules are applied at the ticks of a global clock and their products are introduced ...
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      Tissue P systems with channel states 

      Freund, Rudolf; Paun, Gheorghe; Pérez Jiménez, Mario de Jesús (Elsevier, 2005)
      We consider tissue-like P systems with states associated with the links (we call them synapses) between cells, controlling ...
    • Ponencia
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      (Tissue) P Systems Using Non-cooperative Rules Without Halting Conditions 

      Beyreder, Markus; Freund, Rudolf (Fénix Editora, 2008)
      We consider (tissue) P systems using non-cooperative rules, but considering computations without halting conditions. As ...
    • Ponencia
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      (Tissue) P Systems with Anti-Membranes 

      Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Escuela Técnica Superior de Ingeniería Informática, Universidad de Sevilla, 2019)
      The concept of a matter object being annihilated when meeting its corresponding anti-matter object is taken over for ...
    • Ponencia
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      Tissue-like P Systems with Channel-States 

      Freund, Rudolf; Paun, Gheorghe; Pérez Jiménez, Mario de Jesús (Fénix Editora, 2004)
      We consider tissue-like P systems with states associated with the links (we call them synapses) between cells, controlling ...
    • Ponencia
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      Two Universality Results for (Mem)Brane Systems 

      Besozzi, Daniela; Busi, Nadia; Franco, Giuditta; Freund, Rudolf; Paun, Gheorghe (Fénix Editora, 2006)
      We prove that P systems with mate and drip operations and using at most five membranes during any step of a computation ...
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      Unfair P Systems 

      Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Fenix Editora, 2017)
      We introduce a novel kind of P systems in which the application of rules in each step is controlled by a function on the ...
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      Universal P Systems: One Catalyst Can Be Suficient 

      Freund, Rudolf; Paun, Gheorghe (Fénix Editora, 2013)
      Whether P systems with only one catalyst can already be universal, is still an open problem. Here we establish universality ...
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      Variants of P Systems with Toxic Objects 

      Alhazov, Artiom; Freund, Rudolf; Ivanov, Sergiu (Fénix Editora, 2015)
      Toxic objects have been introduced to avoid trap rules, especially in (purely) catalytic P systems. No toxic object is ...