Piecewise Constant Feedback Control of Piecewise Affine Gene Network Models

Etienne Farcot 1 Jean-Luc Gouzé 1
1 COMORE - Modeling and control of renewable resources
LOV - Laboratoire d'océanographie de Villefranche, CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : The use of hybrid dynamical systems to model gene regulation is impelled by the switch-like behaviour of the latter. Piecewise affine differential equations is one of the most extensively studied among such kind of models. We propose an extension of this class, introducing some input variables. A special focus is given to degradation and production rates being affine functions of the inputs. Some generic control problems are proposed, formulated in terms of an underlying discrete structure. Piecewise constant feedback laws that solve these problems are characterized in terms of affine inequalities. These general feedback laws are then applied to a well-known two dimensional example: the toggle switch. It is shown how to control this system toward various behaviours, especially bistability and bisimilarity with a discrete quotient.
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Communication dans un congrès
A. Bemporad, A. Bicchi, G. Buttazzo. Hybrid Systems: Computation and Control, HSCC 2007, 2007, Pisa, Italy. Springer, 4416, pp.688-692, 2007, Lecture Notes in Computer Science - LNCS
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Etienne Farcot, Jean-Luc Gouzé. Piecewise Constant Feedback Control of Piecewise Affine Gene Network Models. A. Bemporad, A. Bicchi, G. Buttazzo. Hybrid Systems: Computation and Control, HSCC 2007, 2007, Pisa, Italy. Springer, 4416, pp.688-692, 2007, Lecture Notes in Computer Science - LNCS. 〈hal-00831825〉

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