数学季刊 ›› 2011, Vol. 26 ›› Issue (3): 360-365.
摘要: In the paper, we prove the main result: Let k(≥2) be an integer, and a, b and c be three distinct complex numbers. Let F be a family of functions holomorphic in a domain D in complex plane, all of whose zeros have multiplicity at least k. Suppose that for each f∈F, f(z) and f(k)(z) share the set {a,b,c}. Then F is a normal family in D.
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