arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1702.06563math.DS
收藏

有限型超越函数在参数平面上的稳定分支

Stable components in the parameter plane of transcendental functions of finite type

Nuria Fagella, Linda Keen

摘要:

本文研究了有限型全纯和亚纯超越映射族的某些一维动力定义切片的参数平面。我们的平面是通过约束除了一个奇异值之外的所有奇异值的轨道,并留下一个自由的渐近值来定义的。我们研究了参数区域的结构,我们称之为{ \em壳分量},其中自由渐近值趋向于非常数乘子的吸引环。指数族和正切族是已经详细研究的例子,并且这些参数平面中的双曲分量是壳分量。我们的结果适用于整映射和亚纯映射的切片。我们证明了壳分支是单连通的,有一个局部连通的边界,没有中心,即,没有循环超吸引的参数值。相反,边界中有一个唯一的参数,即{ \em虚拟中心},它起着相同的作用。对于整个切片,虚中心总是在无穷远,而对于亚纯切片,它可能是有限的或无限的。在动力学平面中,我们证明了,除其他结果外,只包含一个渐近值和没有临界点的吸引盆是简单连通的。我们的动力平面结果不受有限型的限制。

英文摘要:

We study the parameter planes of certain one-dimensional, dynamically-defined slices of holomorphic families of entire and meromorphic transcendental maps of finite type. Our planes are defined by constraining the orbits of all but one of the singular values, and leaving free one asymptotic value. We study the structure of the regions of parameters, which we call {\em shell components}, for which the free asymptotic value tends to an attracting cycle of non-constant multiplier. The exponential and the tangent families are examples that have been studied in detail, and the hyperbolic components in those parameter planes are shell components. Our results apply to slices of both entire and meromorphic maps. We prove that shell components are simply connected, have a locally connected boundary and have no center, i.e., no parameter value for which the cycle is superattracting. Instead, there is a unique parameter in the boundary, the {\em virtual center}, which plays the same role. For entire slices, the virtual center is always at infinity, while for meromorphic ones it maybe finite or infinite. In the dynamical plane we prove, among other results, that the basins of attraction which contain only one asymptotic value and no critical points are simply connected. Our dynamical plane results apply without the restriction of finite type.

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。

↑