有限阶亚纯函数的类型

M.V. Kabanko
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引用次数: 0

摘要

设$f(z)$为有限阶复平面$\rho>0$上的亚纯函数。让$\rho(r)$成为Boutroux意义上的近似顺序,这样$\limsup\limits_{r\to\infty}\rho(r)=\rho$$\liminf\limits_{r\to\infty}\rho(r)=\alpha>0$。如果是$[\alpha]<\alpha\leqslant\rho<[\alpha]+1$,那么$T(r,f)$和$|N|(r,f)$的类型相对于$\rho(r)$是一致的。如果在$\alpha$和$\rho$之间存在整数,则结果准则是根据函数$f$的零和极点的上密度及其参数对称性来表示的。
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On the type of the meromorphic function of finite order
Let $f(z)$ be a meromorphic function on the complex plane of finite order $\rho>0$. Let $\rho(r)$ be a proximate order in the sense of Boutroux such that $\limsup\limits_{r\to\infty}\rho(r)=\rho$, $\liminf\limits_{r\to\infty}\rho(r)=\alpha>0$. If $[\alpha]<\alpha\leqslant\rho<[\alpha]+1$ then the types of $T(r,f)$ and $|N|(r,f)$ coincide with respect to $\rho(r)$. If there are integers between $\alpha$ and $\rho$, then the resulting criterion is formulated in terms of the upper density of zeros and poles of the function $f$ and their argument symmetry.
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CiteScore
1.20
自引率
40.00%
发文量
27
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