共查询到19条相似文献,搜索用时 93 毫秒
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研究有理函数及整函数Julia集的拓扑结构,刻画了有理函数Julia集的复杂性,展示了整函数在Fatou集上的动力学性质对其Julia集拓扑复杂性的影响. 相似文献
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《数学物理学报(A辑)》2016,(6)
考虑反铁磁链对应的金刚石型等级晶格上的λ-态Potts模型的配分函数零点的极限点集,这极限点集被证明是一族有理函数T_λ(z)的Julia集J(T_λ(z)).该文得到当λ→∞时,其Julia集J(T_λ(z))的Hausdorff维数的渐近估计,即J(T_λ(z))的Hausdorff维数的一个下界估计,另外研究这族有理函数的Julia集的其他拓扑性质. 相似文献
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对有理函数证明了:如果Julia集不连通,Fatou集没有完全不变分支,则Julia集存在淹没分支;对有限型超越整函数证明了:如果Fatou集不连通,则Julia集上存在淹没点集的无界连续统. 相似文献
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本文研究了NCP映射的Julia集为Jordan曲线的问题.利用网格和共形迭代函数系统的方法,获得了Julia集在那种情况下为Jordan曲线的一般结果,推广了有理函数的Julia集为Jordan曲线的复解析动力系统方面的结果. 相似文献
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《应用泛函分析学报》2019,(1)
本文首先定义了Banach空间中的一种新性质,Q性质.并且证明了Banach空间X中的每个闭凸集是逼近紧Chebyshev集当且仅当X满足Q性质;其次证明X是自反的中点局部一致凸空间当且仅当X具有Q性质,其证明运用到了Banach空间几何理论的一些巧妙方法. 相似文献
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《数学物理学报(B辑英文版)》2020,(4)
In 1965 Baker first considered the distribution of Julia sets of transcendental entire maps and proved that the Julia set of an entire map cannot be contained in any finite set of straight lines. In this paper we shall consider the distribution problem of Julia sets of meromorphic maps. We shall show that the Julia set of a transcendental meromorphic map with at most finitely many poles cannot be contained in any finite set of straight lines.Meanwhile, examples show that the Julia sets of meromorphic maps with infinitely many poles may indeed be contained in straight lines. Moreover, we shall show that the Julia set of a transcendental analytic self-map of C* can neither contain a free Jordan arc nor be contained in any finite set of straight lines. 相似文献
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Yu Zhai 《数学学报(英文版)》2010,26(11):2199-2208
In 1992, Branner and Hubbard raised a conjecture that the Julia set of a polynomial is a Cantor set if and only if each critical component of its filled-in Julia set is not periodic. This conjecture was solved recently. In this paper, we generalize this result to a class of rational functions. 相似文献
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Yin Yongcheng 《数学年刊B辑(英文版)》1998,19(1):77-80
THETOPOLOGYOFJULIASETSFORGEOMETRICALLYFINITEPOLYNOMIALSYINYONGCHENGManuscriptreceivedJune3,1995.RevisedApril3,1997.Instit... 相似文献
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Shunsuke Morosawa 《复变函数与椭圆型方程》2019,64(4):701-709
We consider semigroups generated by two rational functions whose Julia sets are Cantor targets. Noting that a Cantor target has no interior points, we construct a polynomial semigroup whose Julia set has no interior points and the Hausdorff dimension of whose Julia set is arbitrary close to 2. 相似文献
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Cunji Yang 《分析论及其应用》2009,25(4):317-324
Based on the work of McMullen about the continuity of Julia set for rational functions, in this paper, we discuss the continuity
of Julia set and its Hausdorff dimension for a family of entire functions which satisfy some conditions. 相似文献
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The Fatou-Julia iteration theory of rational functions has been extended to uniformly quasiregular mappings in higher dimension by various authors, and recently some results of Fatou-Julia type have also been obtained for non-uniformly quasiregular maps. The purpose of this paper is to extend the iteration theory of transcendental entire functions to the quasiregular setting. As no examples of uniformly quasiregular maps of transcendental type are known, we work without the assumption of uniform quasiregularity. Here the Julia set is defined as the set of all points such that the complement of the forward orbit of any neighbourhood has capacity zero. It is shown that for maps which are not of polynomial type, the Julia set is non-empty and has many properties of the classical Julia set of transcendental entire functions. 相似文献
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Mark Comerford 《Journal of Difference Equations and Applications》2013,19(4):585-604
We consider the dynamics arising from the iteration of an arbitrary sequence of polynomials with uniformly bounded degrees and coefficients and show that, as parameters vary within a single hyperbolic component in parameter space, certain properties of the corresponding Julia sets are preserved. In particular, we show that if the sequence is hyperbolic and all the Julia sets are connected, then the whole basin at infinity moves holomorphically. This extends also to the landing points of external rays and the resultant holomorphic motion of the Julia sets coincides with that obtained earlier in [9] using grand orbits. In addition, we have combinatorial rigidity in the sense that if a finite set of external rays separates the Julia set for a particular parameter value, then the rays with the same external angles separate the Julia set for every parameter in the same hyperbolic component. 相似文献
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We describe the fractal structure of expanding meromorphic maps of the form , where H and Q are rational functions whose most transparent examples are among the functions of the form with . In particular we show that depending upon whether the Hausdorff dimension of the Julia set is greater or less than 1, the
finite non-zero geometric measure is provided by the Hausdorff or packing measure. In order to describe this fractal structure
we introduce and explore in detail Walters expanding conformal maps and jump-like conformal maps.
Received: 3 May 2001 / Published online: 5 September 2002 相似文献
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This paper discusses the limit functions of a random iteration system formed by finitely many rational functions. Applying these results we prove that a hyperbolic iteration system has no wandering domain and that its limit functions are constant. Finally the continuity on its Julia set is considered. 相似文献