Coefficient Estimates for Three Generalized Classes of Meromorphic and Bi-Univalent Functions

被引:12
|
作者
Xiao, Hai-Gen [1 ]
Xu, Qing-Hua [1 ]
机构
[1] JiangXi Normal Univ, Coll Math & Informat Sci, Nanchang 330022, Peoples R China
关键词
Meromorphic functions; Bi-univalent functions; beta-spirallike functions of order alpha; Bazilevic functions of type beta and order alpha; lambda-convex functions of order alpha; BAZILEVIC-FUNCTIONS; SUBCLASS; INVERSES; SETS;
D O I
10.2298/FIL1507601X
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, we introduce and investigate three interesting subclass Sigma(v)*(lambda, alpha), Sigma(B)(v)(beta, alpha) and (Sigma) over tilde (v)*(alpha, beta) of meromorphic and bi- univalent functions on Delta = { z epsilon C : vertical bar z vertical bar > 1}, obtain their coe ffi cient estimates. The results presented in this paper generalize the recent work of several earlier authors.
引用
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页码:1601 / 1612
页数:12
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