Almost automorphic and weighted pseudo almost automorphic solutions of semilinear evolution equations

In this paper, applying the theory of semigroups of operators to evolution family and Banach fixed point theorem, we prove the existence and uniqueness of an (a) almost automorphic (weighted pseudo almost automorphic) mild solution of the semilinear evolution equation x (t) = A(t)x(t) + f (t,x(t)) in Banach space under conditions. © 2009 Elsevier Inc. All rights reserved.