In this work, we present some existence theorems of weighted pseudo almost periodic solutions for N-th order neutral differential equations with piecewise constant argument by means of weighted pseudo almost periodic solutions of relevant difference equations.
In this paper, we present some existence theorems for pseudo-almost periodic solutions of differential equations with piecewise constant argument by means of pseudo-almost periodic solutions of relevant difference equations.
We present some conditions for the existence and uniqueness of almost automorphic solutions of third order neutral delay-differential equations with piecewise constant of the form（X（t） ＋px（t - 1））″′, = a0x（[t]） ＋ a1x（[t - 1]） ＋ f（t）,where [.] is the greatest integer function, p, a0 and al are nonzero constants, and f（t） is almost automorphic.
