论文标题

零均衡的超几何函数的映射属性

Mapping properties of the zero-balanced hypergeometric functions

论文作者

Wang, Li-Mei

论文摘要

在本文中,Z \ Gauss(A,B; C; Z)的凸度顺序首先在某些条件下在正真实参数A,B和C上给出。然后,我们表明,在一些移动的零平衡超测量函数z \ gauss(a,b; a+b; z)下,单位圆盘\ d的图像域是凸的,并由两个水平线界定,这些水平线解决了ponnusamy and vuorinen在\ cite {ponvuor {ponvuor:2001:2001:2001:2001:2001:ponnusamy and vuorinen提出的问题

In the present paper, the order of convexity of z\Gauss(a,b;c;z) is first given under some conditions on the positive real parameters a, b and c. Then we show that the image domains of the unit disc \D under some shifted zero-balanced hypergeometric functions z\Gauss(a,b;a+b;z) are convex and bounded by two horizontal lines which solves the problem raised by Ponnusamy and Vuorinen in \cite{PonVuor:2001

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