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A remark on invariant operator ranges

✍ Scribed by C. Peligrad


Publisher
SP Birkhäuser Verlag Basel
Year
1990
Tongue
English
Weight
101 KB
Volume
13
Category
Article
ISSN
0378-620X

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📜 SIMILAR VOLUMES


Backward Shift Invariant Operator Ranges
✍ Sarah H. Ferguson 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 380 KB

Results on first order Ext groups for Hilbert modules over the disk algebra are used to study certain backward shift invariant operator ranges, namely de Branges Rovnyak spaces and a more general class called H(W ; B) spaces. Necessary and sufficient conditions are given for the groups Ext 1 A(D) (H