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Computing omega-limit Sets in Linear Dynamical Systems

Emmanuel Hainry 1
1 CARTE - Theoretical adverse computations, and safety
Inria Nancy - Grand Est, LORIA - FM - Department of Formal Methods
Abstract : Dynamical systems allow to modelize various phenomena or processes by only describing their local behaviour. It is an important matter to study the global and the limit behaviour of such systems. A possible description of this limit behaviour is via the omega-limit set: the set of points that can be limit of subtrajectories. The omega-limit set is in general uncomputable. It can be a set highly difficult to apprehend. Some systems have for example a fractal omega-limit set. However, in some specific cases, this set can be computed. This problem is important to verify properties of dynamical systems, in particular to predict its collapse or its infinite expansion. We prove in this paper that for linear continuous time dynamical systems, it is in fact computable. More, we also prove that the ω-limit set is a semi-algebraic set. The algorithm to compute this set can easily be derived from this proof.
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https://hal.inria.fr/inria-00250111
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Submitted on : Thursday, August 21, 2008 - 6:50:51 PM
Last modification on : Thursday, March 5, 2020 - 11:02:12 AM
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Emmanuel Hainry. Computing omega-limit Sets in Linear Dynamical Systems. Unconventional Computation, Aug 2008, Vienne, Austria. pp.83--95, ⟨10.1007/978-3-540-85194-3_9⟩. ⟨inria-00250111v3⟩

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