ALMOST PERIODIC SOLUTIONS TO SOME SECOND-ORDER NONAUTONOMOUS DIFFERENTIAL EQUATIONS.

This paper is concerned with the existence of almost periodic mild solutions to some second-order equations. Using dichotomy tools and the Schauder fixed point theorem, the existence of almost periodic mild solutions to those second-order evolution equations is established. To illustrate our abstract results, the existence of almost periodic solutions to a damped second-order boundary value problem is also discussed. [ABSTRACT FROM AUTHOR]