Guo, Bao-Zhu; Luo, Yue-Hu Controllability and stability of a second-order hyperbolic system with collocated sensor/actuator. (English) Zbl 0994.93021 Syst. Control Lett. 46, No. 1, 45-65 (2002). Summary: A second-order hyperbolic system with collocated sensor/actuator is considered. The semigroup generation is shown for the closed-loop system under the feedback with a generic unbounded observation operator. The equivalence between the exponential stability of the closed-loop system and exact controllability of the open-loop system is established in the general framework of well-posed linear systems. Finally, the conditions are weakened for the diagonal semigroups with finite dimensional inputs. An example of a beam equation is presented to display the application. Cited in 44 Documents MSC: 93C20 Control/observation systems governed by partial differential equations 93B05 Controllability 93D15 Stabilization of systems by feedback Keywords:controllability; stabilization; hyperbolic system; well-posed system; collocated sensor/actuator; semigroup generation; unbounded observation operator × Cite Format Result Cite Review PDF Full Text: DOI References: [1] Ammari, K.; Tucsnak, M., Stabilization of second order evolution equations by a class of unbounded feedbacks, ESAIM Control Optim. Calc. Var., 6, 361-386 (2001) · Zbl 0992.93039 [2] Benchimol, C. D., A note on the weak stabilizability of contraction semigroups, SIAM J. Control Optim., 16, 373-379 (1978) · Zbl 0384.93035 [3] Chen, G.; Delfour, M. C.; Krall, A. M.; Payre, G., Modeling, stabilization and control of serially connected beam, SIAM J. Control Optim., 25, 526-546 (1987) · Zbl 0621.93053 [4] Chen, G.; Krantz, S. G.; Ma, D. W.; Wayne, C. 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