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arXiv 1902.09642math.DS
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有理映射的朱利亚集的对称性

Symmetries for Julia sets of rational maps

Gustavo Rodrigues Ferreira

摘要:

自20世纪80年代以来,在完全确定哪些函数共享朱利亚集方面取得了很大进展。多项式的情况在1995年被完全解决了,并且证明了朱利亚集的对称性在回答这个问题中起着核心作用。理性的情形仍然是开放的,但它已经被证明比多项式的情形复杂得多。在这里,我们提供部分推广Beardon的结果对称群的朱利亚集,并讨论他们的背景下,奇摄动映射。

英文摘要:

Since the 1980s, much progress has been done in completely determining which functions share a Julia set. The polynomial case was completely solved in 1995, and it was shown that the symmetries of the Julia set play a central role in answering this question. The rational case remains open, but it was already shown to be much more complex than the polynomial one. Here, we offer partial extensions to Beardon's results on the symmetry group of Julia sets, and discuss them in the context of singularly perturbed maps.

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