Pseudo Almost Periodic Solutions of Some Delay Differential Equations

The purpose of this paper is to show how the decomposition theory of linear autonomous and pseudo almost periodic systems can be used to obtain results for ‘‘perturbed’’ linear systems with pseudo almost periodic coefficients. This theory together with a natural adaptation of the methods for ordinary differential equations yields the results in an elementary manner. No attempt is made to present the results in the most general form since our primary concern is to indicate the variety of problems to which the methods are applicable. The essential mean used is the exponential dichotomy method