Baker domains of meromorphic functions
Baker domains of meromorphic functions
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亚纯函数的 Baker 域
DOI:
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发表时间:
2006
影响因子:
0.9
通讯作者:
P. Rippon
中科院分区:
文献类型:
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作者:
P. Rippon
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.