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Almost Periodic Solutions of Abstract Retarded Functional Differential Equations with Unbounded Delay |
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| Authors: | Hernán R. Henríquez Carlos H. Vásquez |
| Affiliation: | (1) Departamento de Matemática, Universidad de Santiago, Casilla 307, Correo 2 Santiago, Chile |
| Abstract: | We establish the existence of bounded, almost periodic and asymptotically almost periodic mild solutions for first- and second-order abstract-retarded functional differential equations with unbounded delay. |
| Keywords: | retarded functional differential equations almost periodic solutions semigroup of operators cosine functions of operators |
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