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关于单位圆内高阶线性微分方程的复振荡 被引量:5

On the Complex Oscillation of Higher Order Linear Differential Equations in the Unit Disc
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摘要 对高阶线性微分方程f(k)+Ak-1(z)f(k-1)+…+A0(z)f=F(z)的复振荡进行了研究,其中系数Aj(z)(j=0,…,k-1)和F(z)是单位圆Δ内的解析函数,得到了解的超级和零点收敛指数的估计. In this paper , we studied the complex oscillation of higher order linear differential equations of the form f^(k)+Ak-1^(z)f^(k-1)+…+A0^(z)f=F(z) Where the coefficients Aj(z) = (j = 0,…, k - 1 ) and F(z) are analytic functions in the unit disc △. We obtained the estimations of hyper order and convergence exponent of zeros of solutions.
出处 《江西师范大学学报(自然科学版)》 CAS 北大核心 2009年第2期194-200,共7页 Journal of Jiangxi Normal University(Natural Science Edition)
基金 国家自然科学基金(10871108) 江西省教育厅(赣教技字[2006]122号) 江西师范大学创新基金资助项目
关键词 单位圆 线性微分方程 解析函数 增长级 零点收敛指数 unit disc linear differential equation analytic function order of the growth convergence exponent of zero points
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