Nonnegative linear elimination for chemical reaction networks
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- OA-NONNEGATIVE LINEAR ELIMINATION FOR CHEMICAL
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We consider linear elimination of variables in the steady state equations of a chem- ical reaction network. Particular subsets of variables corresponding to sets of so-called reactant- noninteracting species, are introduced. The steady state equations for the variables in such a set, taken together with potential linear conservation laws in the variables, define a linear system of equa- tions. We give conditions that guarantee that the solution to this system is nonnegative, provided it is unique. The results are framed in terms of spanning forests of a particular multidigraph derived from the reaction network and thereby conditions for uniqueness and nonnegativity of a solution are derived by means of the multidigraph. Though our motivation comes from applications in systems biology, the results have general applicability in applied sciences.
Originalsprog | Engelsk |
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Tidsskrift | SIAM Journal on Applied Mathematics |
Vol/bind | 79 |
Udgave nummer | 6 |
Sider (fra-til) | 2434-2455 |
ISSN | 0036-1399 |
DOI | |
Status | Udgivet - 2019 |
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