RT info:eu-repo/semantics/article T1 Nonautonomous linear-quadratic dissipative control processes without uniform null controllability A1 Johnson, Russell A1 Novo, Sylvia A1 Núñez Jiménez, María del Carmen A1 Obaya, Rafael K1 Nonautonomous linear Hamiltonian systems K1 Linear-quadratic control system K1 Dissipativity K1 Abnormal systems K1 Rotation number K1 Proper focal point AB In this paper the dissipativity of a family of linear-quadratic control processes is studied. The application of the Pontryagin Maximum Principle to this problem gives rise to a family of linear Hamiltonian systems for which the existence of an exponential dichotomy is assumed, but no condition of controllability is imposed. As a consequence, some of the systems of this family could be abnormal. Sufficient conditions for the dissipativity of the processes are provided assuming the existence of global positive solutions of the Riccati equation induced by the family of linear Hamiltonian systems or by a convenient disconjugate perturbation of it. PB Springer SN 1040-7294 YR 2017 FD 2017 LK http://uvadoc.uva.es/handle/10324/25424 UL http://uvadoc.uva.es/handle/10324/25424 LA eng NO Journal of Dynamics and Differential Equations 29 (2017), 355-383. NO Producción Científica DS UVaDOC RD 25-abr-2024