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Detection of Hopf bifurcations in chemical reaction networks using convex coordinates

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons21488

Eiswirth,  Markus
Physical Chemistry, Fritz Haber Institute, Max Planck Society;
Ertl Center for Electrochemisty and Catalysis, Gwangju Institute of Science and Technology (GIST);

http://pubman.mpdl.mpg.de/cone/persons/resource/persons73108

Sturm,  Thomas
Automation of Logic, MPI for Informatics, Max Planck Society;

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YJCPH_5760.pdf
(beliebiger Volltext), 571KB

2111778.pdf
(Verlagsversion), 5MB

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Zitation

Errami, H., Eiswirth, M., Grigoriev, D., Seiler, W. M., Sturm, T., & Weber, A. (2015). Detection of Hopf bifurcations in chemical reaction networks using convex coordinates. Journal of Computational Physics, 291, 279-302. doi:10.1016/j.jcp.2015.02.050.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0025-77FE-C
Zusammenfassung
We present ecient algorithmic methods to detect Hopf bifurcation xed points in chemical reaction networks with symbolic rate constants, thereby yielding information about the oscillatory behavior of the networks. Our methods use the representations of the systems on convex coordinates that arise from stoichiometric network analysis. One of our methods then reduces the problem of determining the existence of Hopf bifurcation xed points to a rst-order formula over the ordered eld of the reals that can be solved using computational logic packages. The second method uses ideas from tropical geometry to formulate a more ecient method that is incomplete in theory but worked very well for the examples that we have attempted; we have shown it to be able to handle systems involving more than 20 species.