Uniqueness of meromorphic functions sharing four small functions on annuli

Year, pages: 2019, 815 - 824

Under a certain condition, we propose a uniqueness theorem about meromorphic functions sharing four distinct small functions on an annulus. Two counter examples are given in order to show the certain condition is necessary. Our results generalize or improve the previous theorems due to T. B. Cao et al. and N. Wu et al.

Meng, D., Liu, S., Lu, N. 2019. Uniqueness of meromorphic functions sharing four small functions on annuli. In Mathematica Slovaca, vol. 69, no.4, pp. 815-824. 0139-9918. DOI: https://doi.org/ 10.1515/ms-2017-0270

Meng, D., Liu, S., Lu, N. (2019). Uniqueness of meromorphic functions sharing four small functions on annuli. Mathematica Slovaca, 69(4), 815-824. 0139-9918. DOI: https://doi.org/ 10.1515/ms-2017-0270

Publisher: Mathematical Institute, Slovak Academy of Sciences, Bratislava