Almost periodic weak solutions of neutral delay-differential equations with piecewise constant argument Original Research Article

In this paper, we give some theorems on the almost periodic weak solutions of second-order neutral delay-differential equations with piecewise constant argument of the form View the MathML source(x(t)+px(t-1))″=qx2t+12+f(t), Turn MathJax on where [·][·] denotes the greatest integer function, p,qp,q are nonzero constants, and f(t)f(t) is almost periodic.