Volume 12, Issue 5 | Integral Equations and Operator Theory

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Volume 12, Issue 5

September 1989

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7 articles in this issue

Definitizable extensions of positive symmetric operators in a Krein space
Branko Ćurgus
OriginalPaper Pages: 615 - 631
Noncommutative differential geometry, quantization, and smooth symmetries of the C^*-algebras associated to topological dynamics
Palle E. T. Jorgensen
OriginalPaper Pages: 632 - 712
On the spectrum of cosine operator functions
Carlos Lizama
OriginalPaper Pages: 713 - 724
Components in the space of composition operators
Barbara D. MacCluer
OriginalPaper Pages: 725 - 738
Semidefinite perturbations of analytic Hermitian matrix functions
A. C. M. Ran
L. Rodman
OriginalPaper Pages: 739 - 745
A note on compact Lamperti operators
Karsten Jahn
Short Communications Pages: 746 - 750
Can one hear the structure of a Banach space?
A. Pietsch
Short Communications Pages: 751 - 756