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Title: Stable components in the parameter plane of transcendental functions of finite type
Author: Fagella Rabionet, Núria
Keen, Linda
Keywords: Sistemes dinàmics diferenciables
Funcions de variables complexes
Differentiable dynamical systems
Functions of complex variables
Issue Date: May-2021
Publisher: Springer Verlag
Abstract: We study the parameter planes of certain one-dimensional, dynamically-de ned slices of holomorphic families of entire and meromorphic transcendental maps of nite type. Our planes are de ned 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 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 virtual center, which plays the same role. For entire slices, the virtual center is always at in nity, while for meromorphic ones it maybe nite or in nite. 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 nite type.
Note: Versió postprint del document publicat a:
It is part of: Journal of Geometric Analysis, 2021, vol. 31, num. 5, p. 4816-4855
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ISSN: 1050-6926
Appears in Collections:Articles publicats en revistes (Matemàtiques i Informàtica)

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