Existence of bounded solutions for second order neutral difference equations via measure of noncompactness

摘要

In this paper we analyze the existence of bounded solutions for a nonlinearsecond-order neutral difference equation, which is more general than other equationsof this type studied recently. Moreover, our analysis is based under more general conditions than the required in other works, as we only assume the continuity of the involvedfunctions. The main tool here are the so called measures of noncompactness, and morespecifically, the celebrated Darbo fixed point theorem. Also we will state, in the specified sense, the stability of the solutions.