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一类二阶线性微分方程的振荡结果
引用本文:叶中秋,何建军. 一类二阶线性微分方程的振荡结果[J]. 江西师范大学学报(自然科学版), 2005, 29(6): 525-529
作者姓名:叶中秋  何建军
作者单位:江西师范大学,数学与信息科学学院,江西,南昌,330027;江西师范大学,数学与信息科学学院,江西,南昌,330027
基金项目:国家自然科学基金资助项目(10161006).
摘    要:考虑二阶线性微分方程f" + (e^p1^(x) + e^p2^(x) + Q(z))f = 0,这里 P1(z) = t1(z) +…, P2 (z) = t2 (z) +…是非常数多项式,Q(z)是一个阶小于n的整函数.Bank,Laine和langley研究了Q是多项式,t2/t1非实数和负实数情形,Ishizaki and Tohge研究了t2=t1,t2/t1非实数或t2/t1〈1/2情形.该文研究Q(z)是一个阶小于n的整函数且1/2〈t2/t1〈3/4的情形.

关 键 词:复振荡  Nevanlinna理论  值分布
文章编号:1000-5862(2005)06-0525-05
收稿时间:2005-03-31
修稿时间:2005-03-31

An Oscillation Result for a Certain Linear Differential Equation of Second Order
YE Zhong-qiu,HE Jian-jun. An Oscillation Result for a Certain Linear Differential Equation of Second Order[J]. Journal of Jiangxi Normal University (Natural Sciences Edition), 2005, 29(6): 525-529
Authors:YE Zhong-qiu  HE Jian-jun
Affiliation:Institute of Mathematics and lnformatics,Jiangxi Normal University, Nanchang 330027, China
Abstract:We consider the second order equation, f" + (eP1(z) + eP2(x) + Q(z))f = 0, where Pi(z) = t1(z) +n .Bank, Laine and Langley studied the cases when Q is a polynomial and t2/t1 is either non- real or real negative.Ishizaki and Tohge studied the cases when t2 = ti, t2/t1 is non - real or t2/t1 < 1/2. In this paper, we treat the cases when1/2 < t2/t1 < 3/4.
Keywords:complex oscillation   Nevaanlinna theorem   value distribution
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