On the growth of entire solutions of generalized axially symmetric Helmholtz equation (Q788894)
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scientific article; zbMATH DE number 3844212
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the growth of entire solutions of generalized axially symmetric Helmholtz equation |
scientific article; zbMATH DE number 3844212 |
Statements
On the growth of entire solutions of generalized axially symmetric Helmholtz equation (English)
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1983
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Im Anschluß an \textit{R. P. Gilbert} und \textit{H. C. Howard} [Proc. Lond. Math. Soc., III. Ser. 15, 346-360 (1965; Zbl 0135.320)] charakterisiert der Verfasser die untere Wachstumsordnung einer in der Ebene gegebenen Lösung von \(u_{xx}+u_{yy}+(2\nu /y)u_ y+k^ 2u=0\), \(\nu>0\), mit Hilfe der Koeffizientenfolge der Entwicklung nach Gegenbauerpolynomen. Dabei wird ein entsprechendes Ergebnis für ganze holomorphe Funktionen in \({\mathbb{C}}\) verwendet, s. \textit{O. P. Juneja} [J. Anal. Math. 24, 395-401 (1971; Zbl 0249.30022)].
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growth
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entire solutions
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axially symmetric Helmholtz equation
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coefficient's growth
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0.9137831
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0.91223574
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0.9024226
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0.8993143
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0.89128846
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0.8866608
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0.8854874
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