Uniqueness of Meromorphic Functions Concerning their Shifts and Derivatives

摘要

This work is continuation of a recent paper (Qi et al. in Comput Methods Funct Theory 18:567-582, 2018). Here, we obtain three uniqueness results of the derivative of f(z) with its shift f(z+c), leading to a new way of studying the complex differential-difference equation f'(z) = f(z+c).