02322nam 2200589 450 991082812180332120170821172048.01-4704-0203-3(CKB)3360000000464382(EBL)3113490(SSID)ssj0000973503(PQKBManifestationID)11529945(PQKBTitleCode)TC0000973503(PQKBWorkID)10959903(PQKB)10798130(MiAaPQ)EBC3113490(RPAM)2248708(PPN)195410815(EXLCZ)99336000000046438220771116h19781978 uy| 0engur|n|---|||||txtccrFactorization and model theory for contraction operators with unitary part /Joseph A. BallProvidence :American Mathematical Society,[1978]©19781 online resource (78 p.)Memoirs of the American Mathematical Society ;number 198"Volume 13, issue 1."0-8218-2198-9 Bibliography: pages 68.""Table of Contents""; ""Introduction""; ""1. Function models for completely nonunitary contractions""; ""2. Function models for unitary operators""; ""3. Factorization and invariant subspaces""; ""4. Operator nodes and characteristic functions""; ""5. Factorization of nodes and invariant subspaces""; ""6. Spectral invariants for T[sub(u)]""; ""7. A perturbation problem: the operator L = U(I-L[sub(0)])""; ""8. Multiplicity theory for U""; ""9. Comparison of U[sub(ac)] with L[sub(u)]""; ""10. Concluding remarks""; ""References""Memoirs of the American Mathematical Society ;no. 198.Contraction operatorsFactorization of operatorsModel theoryHilbert spaceContraction operators.Factorization of operators.Model theory.Hilbert space.515/.72Ball Joseph A.1947-54258MiAaPQMiAaPQMiAaPQBOOK9910828121803321Factorization and model theory for contraction operators with unitary part3919450UNINA