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100   $a20771116h19781978  uy|            0
101 0 $aeng
135   $aur|n|---|||||
181   $ctxt
182   $cc
183   $acr
200 10$aFactorization and model theory for contraction operators with unitary part /$fJoseph A. Ball
210  1$aProvidence :$cAmerican Mathematical Society,$d[1978]
210  4$dİ1978
215   $a1 online resource (78 p.)
225 1 $aMemoirs of the American Mathematical Society ;$vnumber 198
300   $a"Volume 13, issue 1."
311   $a0-8218-2198-9 
320   $aBibliography: pages 68.
327   $a""Table of Contents""; ""Introduction""; ""1. Function models for completely nonunitary contractions""; ""2. Function models for unitary operators""; ""3. Factorization and invariant subspaces""; ""4. Operator nodes and characteristic functions""; ""5. Factorization of nodes and invariant subspaces""; ""6. Spectral invariants for T[sub(u)]""; ""7. A perturbation problem: the operator L = U(I-L[sub(0)])""; ""8. Multiplicity theory for U""; ""9. Comparison of U[sub(ac)] with L[sub(u)]""; ""10. Concluding remarks""; ""References""
410  0$aMemoirs of the American Mathematical Society ;$vno. 198.
606   $aContraction operators
606   $aFactorization of operators
606   $aModel theory
606   $aHilbert space
615  0$aContraction operators.
615  0$aFactorization of operators.
615  0$aModel theory.
615  0$aHilbert space.
676   $a515/.72
700   $aBall$b Joseph A.$f1947-$054258
801  0$bMiAaPQ
801  1$bMiAaPQ
801  2$bMiAaPQ
906   $aBOOK
912   $a9910788889303321
996   $aFactorization and model theory for contraction operators with unitary part$93799685
997   $aUNINA