1. Definitizable extensions of positive symmetric operators in a Krein space

   • Branko Ćurgus

   OriginalPaper Pages: 615 - 631

2. Noncommutative differential geometry, quantization, and smooth symmetries of the C^*-algebras associated to topological dynamics

   • Palle E. T. Jorgensen

   OriginalPaper Pages: 632 - 712

3. On the spectrum of cosine operator functions

   • Carlos Lizama

   OriginalPaper Pages: 713 - 724

4. Components in the space of composition operators

   • Barbara D. MacCluer

   OriginalPaper Pages: 725 - 738

5. Semidefinite perturbations of analytic Hermitian matrix functions

   • A. C. M. Ran
   • L. Rodman

   OriginalPaper Pages: 739 - 745

6. A note on compact Lamperti operators

   • Karsten Jahn

   Short Communications Pages: 746 - 750

7. Can one hear the structure of a Banach space?

   • A. Pietsch

   Short Communications Pages: 751 - 756