... the functional equation (f − a1 )n1 (f − a2 )n2 (f − aq )nq = cg n has no non-constant meromorphic solutions (f, g) q ni i=1 n Proof Suppose that (f, g) is a non-constant meromorphic solution of ... Remark Propositions 1.5, 1.6 and 1.7 show that the equations (1.1), (1.2) have non-constant solutions only in case where the coefficients of P, Q satisfy some restricted relations As in [4] this ... Application, Vol 3, Kluwer Academic, Boston, MA, 2004, 201-208 [5] Hayman,W.K,Meromorphic Functions, Clarendon, Oxford(1964) [6] P Li and C.C Yang, Some Further Results on the Functional Equation P...