Geometric Properties of log-Polyharmonic Mappings

被引:0
作者
Chen, Jiaolong [1 ]
Sheng, Bin [1 ]
Wang, Xiantao [1 ]
机构
[1] Shantou Univ, Dept Math, Shantou 515063, Guangdong, Peoples R China
关键词
log-polyharmonic; univalent; starlike; convex; UNIVALENT-FUNCTIONS; BIHARMONIC EQUATION; CONVEXITY; DIRECTION;
D O I
10.1007/s00009-017-0865-2
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, a class of log-polyharmonic mappings LpH together with its subclass LpH(G) in the unit disk D - {z : vertical bar z vertical bar < 1} is introduced, and several geometrical properties, such as the starlikeness, convexity and univalence are investigated. In particular, we consider the Goodman-Saff conjecture and prove that the conjecture is true in LpH(G).
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页数:13
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