Uniqueness and weighted sharing of meromorphic functions
We study the uniqueness of meromorphic functions using nonlinear differential polynomials and the weighted value sharing method. Though the main concern of the paper is to improve a recent result of L. Liu [Comput. Math. Appl. 56 (2008), 3236–3245], as a consequence of the main result we also improve and generalize some former results of T. Zhang and W. Lu [Comput. Math. Appl. 55 (2008), 2981–2992], A. Banerjee [Int. J. Pure Appl. Math. 48 (2008), 41–56] and a recent result of the present author [Mat. Vesnik 62 (2010), 169–182].