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Matrix Languages, Register Machines, Vector Addition Systems
(Fénix Editora, 2005)
We give a direct and simple proof of the equality of Parikh images of lan- guages generated by matrix grammars with appearance checking with the sets of vectors generated by register machines. As a particular case, we ...
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Simulation of Mobile Ambients by P Systems. Part 2
(Fénix Editora, 2004)
Ambient calculus is a theory which deals with mobile computing and computation and encompasses such notions as mobile agents, the ambients where the agents interact and the mobility of the ambients themselves. P systems ...
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Uniform Solution to QSAT Using Polarizationless Active Membranes
(Fénix Editora, 2006)
It is known that the satisfiability problem (SAT) can be solved a semi- uniform family of deterministic polarizationless P systems with active membranes with non-elementary membrane division. We present a double improvement ...
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Spiking Neural P Systems: Stronger Normal Forms
(Fénix Editora, 2007)
Spiking neural P systems are computing devices recently introduced as a bridge between spiking neural nets and membrane computing. Thanks to the rapid research in this eld there exists already a series of both theoretical ...
Ponencia
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Pumps Systems of Membranes
(Fénix Editora, 2004)
The reactivity of the living cells provides the real complexity of biological systems. This paper presents a reactive P system where the rules are triggered by certain conditions, and pumps are the parallel processors ...
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P Systems with Active Membranes and Two Polarizations
(Fénix Editora, 2004)
P systems with active membranes using only two electrical charges and only rules of types (a) and (c) assigned to at most two membranes are shown to be computationally complete { thus improving the previous result of ...
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Towards a Programming Language in Cellular Computing
(Fénix Editora, 2004)
Several solutions to hard numerical problems using P systems have been presented recently, and strong similarities in their designs have been no- ticed. In this paper we present a new solution, an e®ective one to the ...
Ponencia
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A Tissue P System and a DNA Microfluidic Device for Solving the Shortest Common Superstring Problem
(Fénix Editora, 2004)
This paper describes a tissue P system for solving the Shortest Common Superstring Problem in linear time. This tissue P system is well suited for parallel and distributed implementation using a micro°uidic device working ...
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Evolution-Communication P Systems: Time-Freeness
(Fénix Editora, 2005)
Membrane computing is a (biologically motivated) theoretical framework of distributed parallel computing. If symbol-objects are considered, then membrane sys- tems (also called P systems) are distributed multiset processing ...