On uniqueness polynomials and Bi-URS for p-adic meromorphic functions

Let W be an algebraically closed field of characteristic zero, and let K be an algebraically closed field of characteristic zero. complete for an ultrametric absolute value. A(K) will denote the ring of entire functions in K and M(K) will denote the field of meromorphic functions in K. In this paper we give some classes of uniqueness polynomials for. NIR) and show the existence of a bi-URS fur M(K) of the form ({a(1), a(2), a(3), a(4)}, {omega}). Also a sufficient condition of uniqueness range sets for M(K) in terms of uniqueness polynomials is given. (C) 2001 Academic Press.