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Almost automorphic solutions of semilinear evolution equations
Authors:Jerome A Goldstein  Gaston M N'Gué    kata
Institution:Department of Mathematical Sciences, University of Memphis, Memphis, Tennessee 38152-3240 ; Department of Mathematics, Morgan State University, Baltimore, Maryland 21251
Abstract:We are concerned with the semilinear differential equation in a Banach space $\mathbb{X} $,

\begin{displaymath}x'(t)=Ax(t)+F(t,x(t)), t\in \mathbb{R}\, ,\end{displaymath}

where $A$ generates an exponentially stable $C_0$-semigroup and $F(t,x): \mathbb{R}\times \mathbb{X}\to \mathbb{X} $is a function of the form $F(t,x)=P(t)Q(x)$. Under appropriate conditions on $P$ and $Q$, and using the Schauder fixed point theorem, we prove the existence of an almost automorphic mild solution to the above equation.

Keywords:
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