We establish conditions for the existence of almost periodic solutions of nonlinear almost periodic differential equations in Banach spaces without using the H-classes of these equations.
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Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 66, No. 3, pp. 384–393, March, 2014.
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Slyusarchuk, V.Y. Conditions for Almost Periodicity of Bounded Solutions of Nonlinear Differential Equations Unsolved with Respect to the Derivative. Ukr Math J 66, 432–442 (2014). https://doi.org/10.1007/s11253-014-0941-8
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DOI: https://doi.org/10.1007/s11253-014-0941-8