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Mostrando ítems 31-39 de 39
Ponencia
An Efficient Cellular Solution for the Partition Problem
(Fénix Editora, 2004)
Numerical problems are not very frequently addressed in the P sys- tems literature. In this paper we present an e®ective solution to the Partition problem via a family of deterministic P systems with active membranes ...
Ponencia
Membrane Operations in P Systems with Active Membranes
(Fénix Editora, 2004)
In this paper we de¯ne a general class of P systems covering some biological operations with membranes, including evolution, communication, modifying the membrane structure, and we describe and formally specify some of ...
Ponencia
Sequential P Systems with Unit Rules and Energy Assigned to Membranes
(Fénix Editora, 2004)
We introduce a new variant of membrane systems where the rules are directly assigned to membranes (and not to the regions as this is usually observed in the area of membrane systems) and, moreover, every membrane carries ...
Ponencia
Deductive Databases and P Systems
(Fénix Editora, 2004)
In computational processes based on backwards chaining, a rule of the type A Ã B1; : : : ;Bn is seen as a procedure which points that the problem A can be split into the problems B1; : : : ;Bn. In classical devices, the ...
Ponencia
Membrane Kauffman Networks
(Fénix Editora, 2004)
A formalization of Kauffman Boolean Networks in terms of P systems is suggested along two lines: by means of register machines and directly by means of membranes with receptors.
Ponencia
About P Systems with Symport/Antiport
(Fénix Editora, 2004)
It is proved that four membranes su±ce to P systems with minimal symport/antiport to generate all recursively enumerable sets of numbers. It is also proved that P systems with symport/antiport without maximal par- allelism ...
Ponencia
(Ultimately Confluent) Parallel Multiset-Rewriting Systems with Context
(Fénix Editora, 2004)
The aim of this paper is to study the power of parallel multiset- rewriting systems with permitting context (or P systems with non-cooperative rules with promoters). The main result obtained is that if we use promoters of ...
Ponencia
Covering Rules in P Systems: Some Preliminary Ideas
(Fénix Editora, 2004)
In this paper we propose a new kind of rules inside the regions of a P system. We have called them covering rules due to the fact that, if selected, they can manage all the objects of the region in an exhaustive manner ...
Ponencia
Cell Communication in Tissue P Systems and Cell Division in Population P Systems
(Fénix Editora, 2004)
Two classes of tissue P systems based on evolution communication rules are introduced, some results are proved, but many more are listed as further research problems. A framework to develop population P systems is de¯ned ...