Global dynamics of the buffered chemostat for a general class of response functions

Alain Rapaport 1, 2 Ihab Haidar 3, 4 Jérôme Harmand 1, 5
1 MODEMIC - Modelling and Optimisation of the Dynamics of Ecosystems with MICro-organisme
CRISAM - Inria Sophia Antipolis - Méditerranée , MISTEA - Mathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie
2 MISTEA - Mathématiques, Informatique et STatistique pour l'Environnement et l'Agronomie
3 GECO - Geometric Control Design
Inria Saclay - Ile de France, X - École polytechnique, CNRS - Centre National de la Recherche Scientifique : UMR7641
4 L2S - Laboratoire des signaux et systèmes
5 LBE - Laboratoire de Biotechnologie de l'Environnement [Narbonne]
Abstract : We study how a particular spatial structure with a buffer impacts the number of equilibria and their stability in the chemostat model. We show that the occurrence of a buffer can allow a species to setup or on the opposite to go to extinction, depending on the characteristics of the buffer. For non-monotonic response function, we characterize the buffered configurations that make the chemostat dynamics globally asymptotically stable, while this is not possible with single, serial or parallel vessels of the same total volume and input flow. These results are illustrated with the Haldane kinetic function.
Keywords : multi-stability global asymptotic stability chemostat interconnection
Type de document :
Article dans une revue
Journal of Mathematical Biology, Springer Verlag (Germany), 2015, 71 (1), pp.69-98. 〈10.1007/s00285-014-0814-7〉
Liste complète des métadonnées
https://hal.inria.fr/hal-00923826
Contributeur : Alain Rapaport <>
Soumis le : dimanche 5 janvier 2014 - 13:49:46
Dernière modification le : mercredi 7 novembre 2018 - 23:10:06

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Alain Rapaport, Ihab Haidar, Jérôme Harmand. Global dynamics of the buffered chemostat for a general class of response functions. Journal of Mathematical Biology, Springer Verlag (Germany), 2015, 71 (1), pp.69-98. 〈10.1007/s00285-014-0814-7〉. 〈hal-00923826〉

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