A Massera-type criterion for almost periodic solutions of higher-order delay or advance abstract functional differential equations.
Van Minh, Nguyen, Minh, Ha Binh (2004)
Abstract and Applied Analysis
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Van Minh, Nguyen, Minh, Ha Binh (2004)
Abstract and Applied Analysis
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Aulbach, Bernd, Nguyen Van Minh (1998)
Abstract and Applied Analysis
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Naito, Toshiki, Nguyen Van Minh, Shin, Jong Son (1999)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Xie, Linghong, Li, Miao, Huang, Falun (2003)
International Journal of Mathematics and Mathematical Sciences
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M. BAHAJ AND E. HANEBALY (1999)
Revista de la Real Academia de Ciencias Exactas Físicas y Naturales
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Valentina Casarino (1999)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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The existence of mean periodic functions in the sense of L. Schwartz, generated, in various ways, by an equicontinuous group or an equicontinuous cosine function forces the spectral structure of the infinitesimal generator of or . In particular, it is proved under fairly general hypotheses that the spectrum has no accumulation point and that the continuous spectrum is empty.
Lan, Nguyen Thanh (2009)
International Journal of Differential Equations
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Valentina Casarino (1997)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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The spectral structure of the infinitesimal generator of strongly measurable, asymptotically -almost periodic semigroups is investigated.
Bugajewski, Dariusz, N'guérékata, Gaston M. (2004)
International Journal of Mathematics and Mathematical Sciences
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