Uniqueness and value-sharing of differential polynomials of meromorphic functions

In this paper, we investigate uniqueness problems of meromorphic functions concerning differential polynomials sharing non-zero finite value and give some results. As particular cases of our results we deduce some significant results which improve several earlier results of Fang and Hong (2001) [2], Yang and Yi (2003) [7], Lin and Yi (2004) [5] and others.