CONTENTS
Preface . vii
1. Isometri c an d unitar y dilation s o f a contractio n operato r 1
2. Furthe r propertie s o f th e minima l unitar y dilatio n 7
3. Characteristi c functio n an d functio n mode l 11
4. Furthe r comment s o n th e characteristi c functio n 0^(A ) 17
5. Invarian t subspace s an d factorization s o f th e characteristi c functio n 2 1
6. Commutativ e system s 2 6
7. Liftin g o f intertwinin g operators. . 3 0
8. Functiona l calculu s fo r a contractio n 3 8
9. Operator s o f clas s C
Q
an d th e Jorda n mode l 4 5
10. Example s o f quasi-similarit y an d th e clas s N~ o f function s 4 9
References - 5 3
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