Periodic solutions of periodic generalized food limited model.
Li, Yongkun (2001)
International Journal of Mathematics and Mathematical Sciences
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Li, Yongkun (2001)
International Journal of Mathematics and Mathematical Sciences
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Zhang, Chuanyi, Liu, Weiguo (2006)
International Journal of Mathematics and Mathematical Sciences
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Wang, Yong (2010)
Applied Mathematics E-Notes [electronic only]
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Carlos Lizama, Rodrigo Ponce (2011)
Studia Mathematica
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Let A and M be closed linear operators defined on a complex Banach space X. Using operator-valued Fourier multiplier theorems, we obtain necessary and sufficient conditions for the existence and uniqueness of periodic solutions to the equation d/dt(Mu(t)) = Au(t) + f(t), in terms of either boundedness or R-boundedness of the modified resolvent operator determined by the equation. Our results are obtained in the scales of periodic Besov and periodic Lebesgue vector-valued spaces. ...
Wang, Genqiang, Yan, Jurang (2000)
International Journal of Mathematics and Mathematical Sciences
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Maurizio Badii (2009)
Rendiconti del Seminario Matematico della Università di Padova
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Jin-Zhi Liu, Zhi-Yuan Jiang, Ai-Xiang Wu (2008)
Applications of Mathematics
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This paper is concerned with periodic solutions of first-order nonlinear functional differential equations with deviating arguments. Some new sufficient conditions for the existence of periodic solutions are obtained. The paper extends and improves some well-known results.
Alexandr Fischer (2004)
Mathematica Bohemica
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This paper is a continuation of my previous paper in Mathematica Bohemica and solves the same problem but by means of another method. It deals with almost periodic solutions of a certain type of almost periodic systems of differential equations.