期刊文献+

单位圆内方程f″+A(z)f=0的解的零点

Zeros of solutions of equation f″+A(z)f=0in unit disc
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摘要 研究单位圆D={z:|z|<1}内方程f″+A(z)f=0(*)的解的零点,其中A(z)为D内的解析函数.在一定条件下,得到了方程(*)的任一非平凡解的零点收敛指数的估计。 It investigates zeros of solutions of the equation f″+A(z)f=0(*) in the unit disc D={z:|z|1},where A(z) is an analytic function in D.Under certain conditions,the estimates for the convergence exponent of zeros of any nontrivial solution of(*) are obtained.
出处 《南昌大学学报(理科版)》 CAS 北大核心 2011年第6期531-534,共4页 Journal of Nanchang University(Natural Science)
基金 国家自然科学基金资助项目(11171119)
关键词 微分方程 H-函数 零点收敛指数 增长级 differential equation H-function convergence exponent of the zero-sequence order of growth
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参考文献9

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