朱军,伍鹏程.关于复微分方程f″+Af′+Bf=0解的增长性(2)[J].数学年刊A辑,2011,32(5):531~538
关于复微分方程f″+Af′+Bf=0解的增长性(2)
On the Growth of Solutions of the Complex Differential Equation f″+Af′+Bf=0(2)
  
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中文关键词:  亏值  复微分方程  亚纯函数  无穷级  
英文关键词:Deficient value  Complex differential equation  Meromorphic function  Infinite order  
基金项目:贵州省自然科学基金(No.2010[07])资助的项目
Author NameAffiliationE-mail
ZHU Jun Kay Lab of Mathematics and Applied Mathematics,School of Mathematics Science,Peking University,Beijing 100871,China. zhujungznumac@126.com 
WU Pengcheng School of Mathematics and Computer Science,Guizhou Normal University,Guiyang 550001,China. wu@gznu.edu.cn 
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中文摘要:
      考虑微分方程 $f''+Af'+Bf=0$, 其中 $A(z)$, $B(z)$ 都是亚纯函数. 如果 $A(z)$ 有一个有穷亏值, 当 赋予$B(z)$某些条件时, 上述方程的每一个 非零解具有无穷级. 这些结果将伍鹏程和朱军前期的工作扩展到 $B(z)$的级等于$\frac{1}{2}$ 的情形.
英文摘要:
      The authors consider the differential equation $f''+Af'+Bf=0$, where $A(z)$ and $B(z)$ are meromorphic functions. Assume that $A(z)$ has a finite deficient value. Then under some conditions on $B(z)$, every nonzero solution $f$ to the equation is of infinite order. These results extend the previous work of Wu Pengcheng and Zhu Jun to the case that the order of $B(z)$ is $\frac 12$.
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