arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.13603math.CV
收藏

玫瑰调和映射

Rosette Harmonic Mappings

Jane McDougall, Lauren Stierman

摘要:

调和映射是一个复变数的单叶调和函数。本文在单位圆盘上定义了一类调和映射族,其象是具有$n$尖点或n个结点的旋转对称圆盘,其中$n \ge 3$ .这些映射类似于$n$ -尖点内摆线,但在解析部分和协解析部分都被高斯超几何因子修改。相对旋转角度$β$的解析和反解析部分导致图,有循环,并在某些情况下二面角对称秩序$n$。虽然不同$β$的图形可能不同,但尖点沿独立于$β$的轴对齐。对于$β$的某些孤立值,边界函数是连续的恒定弧,并有内角$π/2-π/n$的节点。

英文摘要:

A harmonic mapping is a univalent harmonic function of one complex variable. We define a family of harmonic mappings on the unit disk whose images are rotationally symmetric rosettes with $n$ cusps or n nodes, where $n \ge 3$. These mappings are analogous to the $n$-cusped hypocycloid, but are modified by Gauss hypergeometric factors, both in the analytic and co-analytic parts. Relative rotations by an angle $β$ of the analytic and anti-analytic parts lead to graphs that have cyclic, and in some cases dihedral symmetry of order $n$. While the graphs for different $β$ can be dissimilar, the cusps are aligned along axes that are independent of $β$. For certain isolated values of $β$, the boundary function is continuous with arcs of constancy, and has nodes of interior angle $π/2-π/n$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑