arXiv Open Access 2023

Zero distribution of finite order Bank--Laine functions

Yueyang Zhang

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Abstrak

It is known that a Bank-Laine function $E$ is a product of two normalized solutions of the second order differential equation $f"+Af=0$ $(\dagger)$, where $A=A(z)$ is an entire function. By using Bergweiler and Eremenko's method of constructing transcendental entire function $A(z)$ by gluing certain meromorphic functions with infinitely many times, we show that, for each $λ\in[1,\infty)$ and each $δ\in[0,1]$, there exists a Bank--Laine function $E$ such that $E=f_1f_2$ with $f_1$ and $f_2$ being two entire functions such that $λ(f_1)=δλ$ and $λ(f_2)=λ$, respectively. We actually provide a simpler construction of the special Bank--Laine functions given by Bergweiler and Eremenko.

Topik & Kata Kunci

math.CV

Penulis (1)

Yueyang Zhang

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Zhang, Y. (2023). Zero distribution of finite order Bank--Laine functions. https://arxiv.org/abs/2312.11478

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Tahun Terbit: 2023
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓