The zeros of difference of meromorphic solutions for the difference Riccati equation

In this paper, we mainly investigate some properties of the transcendental meromorphic solution f(z) for the difference Riccati equation f(z+1)=p(z)f(z)+q(z)/f(z)+s(z) . We obtain some estimates of the exponents of the convergence of the zeros and poles of f(z) and the difference Δ f(z)=f(z+1)-f(z) .