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**Partial controllability concepts.**
*(English)*
Zbl 1115.93013

Summary: The main results in theory of controllability are formulated for deterministic or stochastic control systems given in a standard form. i.e., given as a first order differential equation driven by an infinitesimal generator of strongly continuous semigroup in an abstract Hilbert or Banach space and disturbed by a deterministic function or by a white noise process. At the same time, some deterministic or stochastic linear systems can be written in a standard form if the state space is enlarged. Respectively, the ordinary controllability conditions for them are too strong since they assume extended state space. It is reasonable to introduce partial controllability concepts, which assume original state space. In this paper, we study necessary and sufficient conditions of partial controllability for deterministic and stochastic linear control systems given in a standard form and their implications to particular cases.

### Keywords:

standard form of control problems; first order differential equations; partial observability
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\textit{A. E. Bashirov} et al., Int. J. Control 80, No. 1, 1--7 (2007; Zbl 1115.93013)

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### References:

[1] | Bashirov, AE. 2003.Partilly Observable Linear Systems under Dependent Noises; Systems&Control: Foundations&Applications, Basel: Birkhäuser. |

[2] | DOI: 10.1137/S0363012994260970 · Zbl 0873.93076 |

[3] | DOI: 10.1137/S036301299732184X · Zbl 0940.93013 |

[4] | DOI: 10.1007/BFb0006761 |

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[9] | Zabczyk, J. 1995.Mathematical Control Theory: An Introduction; System&Control: Foundations&Applications, Berlin: Birkhäuser. |

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