Essential Spectra on Spaces with the Dunford-Pettis Property
β Scribed by Khalid Latrach
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 123 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0022-247X
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β¦ Synopsis
The purpose of this paper is to investigate the invariance, under weakly compact perturbations, of various essential spectrums of closed, densely defined linear operators acting on Banach spaces which possess the Dunford-Pettis property. Both bounded and unbounded perturbations are considered.
π SIMILAR VOLUMES
Every non-reflexive subspace of K(H), the space of compact operators on a Hilbert space H, contains an asymptotically isometric copy of c 0 . This, along with a result of Besbes, shows that a subspace of K(H) has the fixed point property if and only if it is reflexive.
## Abstract The derivatives of 2,5βdipicrylβ1,3,4βoxadiazole (DPO) were optimized to obtain their molecular geometries and electronic structures at the DFTβB3LYP/6β31G^\*^ level. Their IR spectra were obtained and assigned by vibrational analysis. Compared with the experimental results, all the cal