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Lookup NU author(s): Professor Maciej KoutnyORCiD
Membrane systems (with promoters and inhibitors) are a computational model inspired by the way living cells are divided by membranes into compartments where chemical reactions may take place. We consider synchrony and asynchrony between executed reactions in the computations of such systems using Petri nets and their processes as a formal behavioural model. We first discuss different definitions of individual computational steps, and show how they can be rendered within the Petri net domain by assigning all transitions localities corresponding to the compartments, and using activator and inhibitor arcs. The non-sequential semantics of the resulting nets is formalised through processes based on occurrence nets augmented with additional information about localities and activator/inhibitor arcs. Such processes provide a convenient tool for analysing synchrony and asynchrony in the executions of membrane systems and shed light on the causal relationships between the reactions taking place.
Author(s): Kleijn J, Koutny M
Publication type: Report
Publication status: Published
Series Title: School of Computing Science Technical Report Series
Year: 2006
Pages: 31
Print publication date: 01/10/2006
Source Publication Date: October 2006
Report Number: 986
Institution: School of Computing Science, University of Newcastle upon Tyne
Place Published: Newcastle upon Tyne
URL: http://www.cs.ncl.ac.uk/publications/trs/papers/986.pdf
