The Normality of Meromorphic Functions Concerning Sharing Set
Zhang Wen-hua
Abstract
Zhang Wen-hua
Abstract
In this paper,we draw a connection between normal family and sharing set.We proved:Let F be a family of meromorphic functions on the unit disc Δ,and let a,b be distinct non-zero finite values.S={a,b},if the zeros of f are multiple,and _f(S)=_f′(S) for every f∈F,then F is normal on Δ.We also proved corresponding results on normal function.
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In this paper,we draw a connection between normal family and sharing set.We proved:Let F be a family of meromorphic functions on the unit disc Δ,and let a,b be distinct non-zero finite values.S={a,b},if the zeros of f are multiple,and _f(S)=_f′(S) for every f∈F,then F is normal on Δ.We also proved corresponding results on normal function.
Key concepts: Meromorphic function, Normality, Normal family, Set (abstract data type), Connection (principal bundle), Mathematics, Zero (linguistics), Function (biology)