Abstract
Let B be a real separable Banach space and R: B*→B a covariance operator. All representations of R in the form Σen Φ en, {en, n > l} Є B, are characterized. Necessary and sufficient conditions for R to be compact are obtained, including a generalization of Mercer’s theorem. An application to characteristic functions is given. © 1981 American Mathematical Society.
| Original language | English |
|---|---|
| Pages (from-to) | 590-593 |
| Journal | Proceedings of the American Mathematical Society |
| Volume | 83 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Nov 1981 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- Compact operator
- Covariance operator
- Probability in Banach spaces
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