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arXiv 1503.01615math.DSmath.CV
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整函数的快速逃逸点:一个新的正则性条件

Fast escaping points of entire functions: a new regularity condition

Vasiliki Evdoridou

摘要:

设$f$是一个超越整函数.快速逃逸集$A(f)$在超越动力学中起着关键作用。由一个明显较弱的条件定义的相当快的逃逸集$Q(f)$在一定条件下等于$A(f)$。在这里,我们介绍$Q_2(f)$定义的什么似乎是一个更弱的条件。利用一个新的正则性条件证明了有穷级和正低阶函数满足$Q_2(f)=A(f)$。我们还证明了这类函数的有限复合满足$Q_2(f)=A(f)$。最后,我们构造了一个函数,其中$Q_2(f) \neq Q(f)= A(f)$。

英文摘要:

Let $f$ be a transcendental entire function. The fast escaping set, $A(f)$, plays a key role in transcendental dynamics. The quite fast escaping set, $Q(f)$, defined by an apparently weaker condition is equal to $A(f)$ under certain conditions. Here we introduce $Q_2(f)$ defined by what appears to be an even weaker condition. Using a new regularity condition we show that functions of finite order and positive lower order satisfy $Q_2(f)=A(f)$. We also show that the finite composition of such functions satisfies $Q_2(f)=A(f)$. Finally, we construct a function for which $Q_2(f) \neq Q(f)= A(f)$.

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。

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