@Article{CMR-34-125,
author = {Chen , Junfan and Cai , Xiaohua},
title = {Some Normality Criteria for Families of Meromorphic Functions},
journal = {Communications in Mathematical Research },
year = {2019},
volume = {34},
number = {2},
pages = {125--132},
abstract = {<p style="text-align: justify;">Let $k$ be a positive integer and $\cal F$&nbsp;be a family of meromorphic functions
in a domain $D$ such that for each $f\in{\cal F}$, all poles of $f$ are of multiplicity at least 2,
and all zeros of $f$ are of multiplicity at least $k+1$. Let $a$ and $b$ be two distinct finite
complex numbers. If for each $f\in{\cal F}$, all zeros of $f^{(k)}-a$ are of multiplicity at least 2,
and for each pair of functions $f,\,g\in{\cal F}$, $f^{(k)}$
and $g^{(k)}$
share $b$ in $D$, then $\cal F$ is normal
in $D$.</p>},
issn = {2707-8523},
doi = {https://doi.org/10.13447/j.1674-5647.2018.02.04},
url = {http://global-sci.org/intro/article_detail/cmr/13518.html}
}