具有第二固定负系数星像函数类的相关子集

摘要

Making use of a linear operator Iλ,μ,which is defined here by means of a Hadamard prod-uct,we introduce a new class TSb(λ,μ,α)of starlike functions with fixed second negative coefficient de-fined by using a certain fractional calculus operator Iλ,μ. In this paper,we discuss the characterization proper-ty:a necessary and sufficient condition for f( z)to be in the class TSb(λ,μ,α).%通过Hadamard积定义了一个分式积分算子Iλ，μ，利用分式积分算子Iλ，μ及固定第二负系数得到了单位开圆内具有第二固定负系数的星像函数类的新子类TSb（λ，μ，α）。文章主要研究了这类新函数类TS b（λ，μ，α）的特征性质。