On the nonoscillatory behavior of solutions of a second order linear differential equation

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题名:	On the nonoscillatory behavior of solutions of a second order linear differential equation
作者:	Li,HJ;Yeh,CC
贡献者:	數學研究所
关键词:	OSCILLATION
日期:	1996
上传时间:	2010-06-29 19:40:10 (UTC+8)
出版者:	中央大學
摘要:	In this paper, we improve the Sturm comparison theorem and two nonoscillation criteria of LEIGHTON and WINTNER, and establish two variants of a WINTNER's nonoscillatory criterion of the second order linear differential equation [r(t)u'(t)]'+c(t)u(t) = 0, where r, c: [t(0),infinity) --> IR, r > 0 a.e. on [t(0), infinity) and 1/r, c is an element of L(1)(t(0), b) for each b is an element of (t(0), infinity) for some t(0) greater than or equal to 0. Using these two criteria, we improve some nonoscillation criteria of HARTMAN,; HILLE, MOORE, POTTER. WINTNER, and WILLETT. These proofs are more elegant and concise than those of theirs.
關聯:	MATHEMATISCHE NACHRICHTEN
显示于类别:	[數學研究所] 期刊論文

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