A note on a result of Singh and Kulkarni.
Entrire functions and their derivatives share two finite sets.
On entire functions that share a value with their derivatives.
A note on some results of Schwick.
A unicity theorem for meromorphic functions.
Extensions of Hiong's inequality.
Normal families and shared values of meromorphic functions
Let ℱ be a family of meromorphic functions on a plane domain D, all of whose zeros are of multiplicity at least k ≥ 2. Let a, b, c, and d be complex numbers such that d ≠ b,0 and c ≠ a. If, for each f ∈ ℱ, , and , then ℱ is a normal family on D. The same result holds for k=1 so long as b≠(m+1)d, m=1,2,....
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