Almost periodic solutions of first- and second-order Cauchy problems
Almost periodicity of solutions of first- and second-order Cauchy problems on the real line is proved under the assumption that the imaginary (resp. real) spectrum of the underlying operator is countable. Related results have been obtained by Ruess-Vũ and Basit. Our proof uses a new idea. It is base...
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| Format: | Journal article |
| Izdano: |
Elsevier
1997
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