## On uniqueness of meromorphic functions and their derivatives## Chao Meng, Xu LiIn this paper, we deal with the uniqueness problem for the $k$-th derivative of power of meromorphic function and obtain some results which improve and supplement the previous theorem given by V.H. An and H.H. Khoai.Tbilisi Mathematical Journal, Vol. 13(2) (2020), pp. 87-99 |