On the complex oscillation theory of f ″ + A (z)f = 0 where A (z) is analytic in the unit disc

In this paper, we investigate the complex oscillation theory of the second order linear differential equation f ″ + A (z)f = 0, where the coefficient A (z) is an analytic function in the unit disc Δ = {z: |z | < 1} (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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Bibliographic Details
Published in:Mathematische Nachrichten 2009-06, Vol.282 (6), p.820-831
Main Authors: Cao, Ting-Bin, Yi, Hong-Xun
Format: Article
Language:English
Subjects:
analytic function
complex oscillation theory
Linear differential equation
unit disc
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Summary:In this paper, we investigate the complex oscillation theory of the second order linear differential equation f ″ + A (z)f = 0, where the coefficient A (z) is an analytic function in the unit disc Δ = {z: |z | < 1} (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0025-584X
1522-2616
DOI:10.1002/mana.200610774