... Yang, On the Functional Equation P (f)=Q(g), In: ValueDistribution Theory, Kluwer Academic Publishers, 2004, pp. 201 - 207.2. C. C. Yang and P. Li, Some further results on the functional equation P ... m1,m2≥ 3.Remark. In the case n = m = 2, the equation P (f)=Q(g) has some non-constant meromorphic function solutions. Indeed, in this case we can rewrite the equation P (f)=Q(g) in the form:(f ... α2Z)ifm2<n2. Functional Equation P(f)=Q(g) in Complex Numbers Field 319I =#∆,J=#Λ,then k ≥ I and l ≥ J. We obtain the following results.Theorem 2.1. Let P (x) and Q(y) be nonlinear polynomials...