Geodesic
On the properties of the set of trajectories of the nonlinear control system with quadratic integral constraint on the control functions
Ural mathematical journal, Tome 9 (2023) no. 1, pp. 93-103 Cet article a éte moissonné depuis la source Math-Net.Ru

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In this paper the control system described by a nonlinear differential equation is studied. It is assumed that the control functions have a quadratic integral constraint, more precisely, the admissible control functions are chosen from the ellipsoid of the space $L_2([t_0,\theta];\mathbb{R}^m)$. Different properties of the set of trajectories are investigated. It is proved that a small perturbation of the set of control functions causes also appropriate small perturbation of the set of trajectories. It is also shown that the set of trajectories has a small change if along with the integral constraint on the control functions, a sufficiently large norm type geometric constraint on the control functions is introduced. It is established that every trajectory is robust with respect to the fast consumption of the remaining control resource, and hence every trajectory of the system can be approximated by a trajectory generated by full consumption of the total control resource.
Keywords: nonlinear control system, quadratic integral constraint, set of trajectories, robustness. 
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Anar Huseyin; Nesir Huseyin. On the properties of the set of trajectories of the nonlinear control system with quadratic integral constraint on the control functions. Ural mathematical journal, Tome 9 (2023) no. 1, pp. 93-103. http://geodesic.mathdoc.fr/item/UMJ_2023_9_1_a6/

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