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Solving moment hierarchies for chemical reaction networks
Stockholm University, Faculty of Science, Department of Physics.
Number of Authors: 2
2017 (English)In: Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8113, E-ISSN 1751-8121, Vol. 50, no 42, 425002Article in journal (Refereed) Published
Abstract [en]

The study of chemical reaction networks (CRN's) is a very active field. Earlier well-known results (Feinberg 1987 Chem. Enc. Sci. 42 2229, Anderson et al 2010 Bull. Math. Biol. 72 1947) identify a topological quantity called deficiency, for any CRN, which, when exactly equal to zero, leads to a unique factorized steady-state for these networks. No results exist however for the steady states of non-zero-deficiency networks. In this paper, we show how to write the full moment-hierarchy for any non-zero-deficiency CRN obeying mass-action kinetics, in terms of equations for the factorial moments. Using these, we can recursively predict values for lower moments from higher moments, reversing the procedure usually used to solve moment hierarchies. We show, for non-trivial examples, that in this manner we can predict any moment of interest, for CRN's with non-zero deficiency and non-factorizable steady states.

Place, publisher, year, edition, pages
2017. Vol. 50, no 42, 425002
Keyword [en]
non-equilibrium steady states, chemical reaction networks, infinite moment hierarchies
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-147840DOI: 10.1088/1751-8121/aa89d0ISI: 000411467100001OAI: oai:DiVA.org:su-147840DiVA: diva2:1153974
Available from: 2017-11-01 Created: 2017-11-01 Last updated: 2017-11-01Bibliographically approved

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