Baker domains of meromorphic functions

Baker domains of meromorphic functions
复制标题

亚纯函数的 Baker 域

DOI:
--
复制
发表时间:
2006
影响因子:
0.9
通讯作者:
P. Rippon
P. Rippon
中科院分区:
数学2区
文献类型:
--
作者:
P. Rippon

文献摘要

被引文献

相似文献

设f是超越亚纯函数,U是f的Baker整环.我们获得新的估计的行为的迭代$f$在$U$,我们使用这些估计,以改善较早的结果有关的几何性质的$U$的接近$f$的身份函数在$U$。我们也将这些估计应用于形式为f的超越亚纯函数的Baker域 egin{gather*} f(z)= az + bz^ke^{-z}(1+o(1))quad ext{as } Re(z) ightarrow infty,end{gather*}其中$k in {mathbb N},a > 1$且$B > 0$,并表明这些Baker域包含一组无界的临界点和一组无界的临界值。
Let $f$ be a transcendental meromorphic function and $U$ a Baker domain of $f$. We obtain new estimates for the behaviour of the iterates of $f$ in $U$ and we use these estimates to improve an earlier result relating the geometric properties of $U$ to the proximity of $f$ to the identity function in $U$. We also apply these estimates to Baker domains of transcendental meromorphic functions $f$ of the form egin{gather*} f(z) = az + bz^ke^{-z}(1+o(1)) quad ext{as } Re (z) ightarrow infty, end{gather*} where $k in {mathbb N}, a > 1$ and $b > 0$, and show that these Baker domains contain an unbounded set of critical points and an unbounded set of critical values.