On the spectrum of weakly almost periodic solutions of certain abstract differential equations

In a sequentially weakly complete Banach space, if the dual operator of a linear operator A satisfies certain conditions, then the spectrum of any weakly almost periodic solution of the differential equation u′=Au+f is identical with the spectrum of f except at the origin, where f is a weakly almost...

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Main Authors: Aribindi Satyanarayan Rao, L. S. Dube
Format: Article
Language:English
Published: Wiley 1985-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Subjects:
Online Access:http://dx.doi.org/10.1155/S0161171285000096
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author Aribindi Satyanarayan Rao
L. S. Dube
author_facet Aribindi Satyanarayan Rao
L. S. Dube
author_sort Aribindi Satyanarayan Rao
collection DOAJ
description In a sequentially weakly complete Banach space, if the dual operator of a linear operator A satisfies certain conditions, then the spectrum of any weakly almost periodic solution of the differential equation u′=Au+f is identical with the spectrum of f except at the origin, where f is a weakly almost periodic function.
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publishDate 1985-01-01
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series International Journal of Mathematics and Mathematical Sciences
spelling doaj-art-eccdeccdf0014c439b54c1afd11aa0502025-02-03T01:09:44ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04251985-01-018110911210.1155/S0161171285000096On the spectrum of weakly almost periodic solutions of certain abstract differential equationsAribindi Satyanarayan Rao0L. S. Dube1Department of Mathematics, Sir George Williams Campus, Concordia University, Montreal, Quebec, CanadaDepartment of Mathematics, Vanier College, 821 Ste-Mis Croix Blvd., St.-Laurent, Quebec H4L 3x9, CanadaIn a sequentially weakly complete Banach space, if the dual operator of a linear operator A satisfies certain conditions, then the spectrum of any weakly almost periodic solution of the differential equation u′=Au+f is identical with the spectrum of f except at the origin, where f is a weakly almost periodic function.http://dx.doi.org/10.1155/S0161171285000096strongly (weakly) almost periodic functionsequentially weakly complete Banach spacedensely defined linear operatordual operatorHilbert spacenonnegative self-adjoint operator.
spellingShingle Aribindi Satyanarayan Rao
L. S. Dube
On the spectrum of weakly almost periodic solutions of certain abstract differential equations
International Journal of Mathematics and Mathematical Sciences
strongly (weakly) almost periodic function
sequentially weakly complete Banach space
densely defined linear operator
dual operator
Hilbert space
nonnegative self-adjoint operator.
title On the spectrum of weakly almost periodic solutions of certain abstract differential equations
title_full On the spectrum of weakly almost periodic solutions of certain abstract differential equations
title_fullStr On the spectrum of weakly almost periodic solutions of certain abstract differential equations
title_full_unstemmed On the spectrum of weakly almost periodic solutions of certain abstract differential equations
title_short On the spectrum of weakly almost periodic solutions of certain abstract differential equations
title_sort on the spectrum of weakly almost periodic solutions of certain abstract differential equations
topic strongly (weakly) almost periodic function
sequentially weakly complete Banach space
densely defined linear operator
dual operator
Hilbert space
nonnegative self-adjoint operator.
url http://dx.doi.org/10.1155/S0161171285000096
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