Almost automorphic solutions for some partial functional differential equations ✩

In this work, we study the existence of almost automorphic solutions for some partial functional differential equations. We prove that the existence of a bounded solution on R+ implies the existence of an almost automorphic solution. Our results extend the classical known theorem by Bohr and Neugebauer on the existence of almost periodic solutions for inhomegeneous linear almost periodic differential equations. We give some applications to hyperbolic equations and Lotka–Volterra type equations used to describe the evolution of a single diffusive animal species. © 2006 Elsevier Inc. All rights reserved.