Subnormal transcendental meromorphic solutions of difference equations with Schwarzian derivative

M. T. Xia, J. R. Long, X. X. Xiang

The existence of subnormal solutions of following three difference equations with Schwarzian derivative $$\ddot{I}‰(z+1)-\ddot{I}‰(z-1)+a(z)(S(\ddot{I}‰,z){)}^n=R(z,\ddot{I}‰(z)),$$ $$ω(z+1)ω(z-1)+a(z)S(ω,z)…