Title
Spatial P systems
Abstract
We present Spatial P systems, a variant of P systems which embodies the concept of space and position inside a membrane. Objects in membranes are associated with positions. Rules specify, in the usual way, the objects which are consumed and the ones which are produced; in addition, they can specify the positions of the produced objects. Objects belong to two different sets: the set of ordinary objects and the set of mutually exclusive objects. Every position inside a membrane can accommodate an arbitrary number of ordinary objects, but at most one mutually exclusive object. We prove that Spatial P systems are universal even if only non-cooperating rules are allowed. We also show how Spatial P systems can be used to model the evolution of populations in presence of geographical separations.
Year
DOI
Venue
2011
10.1007/s11047-010-9187-z
Natural Computing
Keywords
DocType
Volume
Membrane computing,P systems,Spatial modeling,Universality
Journal
10
Issue
ISSN
Citations 
1
1567-7818
17
PageRank 
References 
Authors
0.83
9
5
Name
Order
Citations
PageRank
Roberto Barbuti186681.03
Andrea Maggiolo-Schettini278989.11
Paolo Milazzo332821.14
Giovanni Pardini415211.81
Luca Tesei517722.01