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3 Bulletin of the Polish Academy of Sciences. Technical Sciences

3 Klamka J.

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Constrained controllability of semilinear systems with delayed controls

100%

Klamka J.

2008

tom Vol. 56, nr 4

333-337

In the present paper finite-dimensional dynamical control systems described by semilinear ordinary differential state equations with multiple point delays in control are considered. It is generally assumed, that the values of admissible controls are in a convex and closed cone with vertex at zero. Using so-called generalized open mapping theorem, sufficient conditions for constrained local relative controllability near the origin are formulated and proved. Roughly speaking, it will be proved that under suitable assumptions constrained global relative controllability of a linear associated approximated dynamical system implies constrained local relative controllability near the origin of the original semilinear dynamical system. This is generalization to the constrained controllability case some previous results concerning controllability of linear dynamical systems with multiple point delays in the control and with unconstrained controls. Moreover, necessary and sufficient conditions for constrained global relative controllability of an associated linear dynamical system with multiple point delays in control are discussed. Simple numerical example, which illustrates theoretical considerations is also given. Finally, some remarks and comments on the existing results for controllability of nonlinear dynamical systems are also presented.

Constrained Controllability of Semilinear Delayed Systems

100%

Klamka J.

tom vol. 49, nr 3

505-515

In the paper infinite-dimensional dynamical control systems described by semilinear differential equations with delays in the state variables are considered. Using a general sufficient conditions for constrained exact controllability for infinite-dimentional dynamical systems sufficient conditions for constrained exact absolute local controllability are formulated and proved. It is generally assumed that the values of controls are in a convex and closed cone with vertex at zero. As an illustrative example, constrained exact absolute local controllability problem for semilinear dynamical system with one constant delay in the state variable is solved in details. Some remarks and comments on the existing results for controllability of nonlinear dynamical systems are also presented.

Constrained controllability of semilinear systems with multiple delays in control

100%

Klamka J.

2004

tom Vol. 52, nr 1

25-30

In the present paper finite-dimensional, stationary dynamical control systems described by semi linear ordinary differential state equations with multiple point delays in control are considered. Infinite-dimensional semi linear stationary dynamical control systems with single point delay in the control are also discussed. Using a generalized open mapping theorem, sufficient conditions for constrained local relative controllability are formulated and proved. It is generally assumed, that the values of admissible controls are in a convex and closed cone with vertex at zero. Some remarks and comments on the existing results for controllability of nonlinear dynamical systems are also presented.