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Dichotomous Hamiltonians and Riccati equations for systems with unbounded control and observation operators

  • Christian WyssEmail author
Conference paper
  • 24 Downloads
Part of the Operator Theory: Advances and Applications book series (OT, volume 277)

Abstract

The control algebraic Riccati equation is studied for a class of systems with unbounded control and observation operators. Using a dichotomy property of the associated Hamiltonian operator matrix, two invariant graph subspaces are constructed which yield a nonnegative and a nonpositive solution of the Riccati equation. The boundedness of the nonnegative solution and the exponential stability of the associated feedback system is proved for the case that the generator of the system has a compact resolvent.

Keywords

Algebraic Riccati equation Hamiltonian matrix dichotomous operator invariant subspace graph subspace 

Mathematics Subject Classification (2010)

Primary 47N70 Secondary 47A15 47A62 47B44 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.School of Mathematics and Natural SciencesUniversity of WuppertalWuppertalGermany

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