在虚轴方向上凸的单叶调和映射的线性组合
Linear combinations of univalent harmonic mappings convex in the direction of the imaginary axis
摘要:
本文引入一族单叶调和函数,它将单位圆盘映射到沿虚轴方向凸的区域上。我们找到了该类映射的线性组合在虚轴方向上是单叶凸的条件。本文还研究了这类函数的线性组合和由解析垂直条带映射的剪切得到的调和映射。
英文摘要:
In the present paper, we introduce a family of univalent harmonic functions, which map the unit disk onto domains convex in the direction of the imaginary axis. We find conditions for the linear combinations of mappings from this family to be univalent and convex in the direction of the imaginary axis. Linear combinations of functions from this family and harmonic mappings obtained by shearing of analytic vertical strip maps are also studied.
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