In this paper, we utilize Nevanlinna value distribution theory to study the uniqueness problem that a meromorphic function and its difference operator share two sets with weight $k$. Our results extend the previous results.
DENG, BINGMAO; LIU, DAN; and YANG, DEGUI
"Meromorphic function and its difference operator share two sets with weight k,"
Turkish Journal of Mathematics: Vol. 41:
5, Article 7.
Available at: https://journals.tubitak.gov.tr/math/vol41/iss5/7