Invertibility of Riccati operators and controllability of related systens
β Scribed by Franco Flandoli
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 523 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0167-6911
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π SIMILAR VOLUMES
## Abstract In Banach spaces ordered by a normal cone that contains interior points the positive invertibility of operators is studied. If there exists a uniformly positive functional then any positively invertible operator __A__ possesses a __B__ βdecomposition, i.e., a positive decomposition __A_
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This paper deals with Volterra perturbations of normal operators in a separable Hilbert space. Invertibility conditions and estimates for the norm of the inverse operators are established. In addition, bounds for the spectrum are suggested. Applications to integral, integro-differential, and matrix