Riesz basis property of root vectors of nonselfadjoint operators generated by radial damped wave equations

zbMath0996.47043MaRDI QIDQ5954437

Marianna A. Shubov

Publication date: 4 February 2002

Published in: Advances in Differential Equations (Search for Journal in Brave)

zbMATH Keywords

exact controllabilityclosed loop controleigenvectorsspectral operatorradial solutionassociated vectordamped wave equationsenergy spacesnonselfadjoint operatorsperiodic controlRiesz basis propertyroot vectors

Mathematics Subject Classification ID

Completeness of eigenfunctions and eigenfunction expansions in context of PDEs (35P10) Wave equation (35L05) Linear symmetric and selfadjoint operators (unbounded) (47B25) General theory of partial differential operators (47F05) Spectral operators, decomposable operators, well-bounded operators, etc. (47B40)

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