The argument distribution of infinite order meromorphic functions (Q2774173)
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scientific article; zbMATH DE number 1713435
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The argument distribution of infinite order meromorphic functions |
scientific article; zbMATH DE number 1713435 |
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28 February 2002
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The argument distribution of infinite order meromorphic functions (English)
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Theorem 1 has the following form: Let \(f\) be an entire function of infinite order with ``type function'' \(u(r)=r^{\rho(r)}\) for \(r>0\). If \(k\) is a positive integer and \(\alpha\) and \(\beta\) are distinct complex numbers with \(\beta\neq 0\), then there is a ray arg \(z=\theta\) with \(0\leq\theta <2\pi\) such that for any \(\varepsilon\) with \(0<\varepsilon <\pi/2\), NEWLINE\[NEWLINE\limsup_{r\to\infty} {\log\bigl \{n(r,\theta, \varepsilon,f= \alpha) +n(r,\theta, \varepsilon, f^{(k)}= \beta)\bigr\} \over\rho (r)\log r}=1,NEWLINE\]NEWLINE where the notation \(n(r,\theta \varepsilon,g= \gamma)\) counts the number of \(\gamma\) points of \(g\) taken on with multiplicity in the sector centered at the origin symmetric about the ray arg \(z=\theta\) and with opening \(\varepsilon\). Theorem 2 concerning meromorphic functions in the plane is similar in form.
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