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一类亚纯系数微分方程解的增长性 被引量:4

On the growth of solutions of a class of differential equations with meromorphic coefficients
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摘要 研究了一类亚纯系数微分方程的复振荡问题.通过应用亚纯函数的分解和模的增长估计,得到了该类方程解的级及其超级的精确估计. We investigate the complex oscillation of a class of differential equations with meromorphic coefficients. By using the factorization of meromorphic functions and the growth estimation of the modual, we obtain precise estimation of the order of growth and hyper-order of solutions of the equations.
作者 刘慧芳
出处 《纯粹数学与应用数学》 CSCD 北大核心 2008年第1期25-29,106,共6页 Pure and Applied Mathematics
基金 国家自然科学基金(10161006)
关键词 微分方程 亚纯函数 超级 differential equation, meromorphic function, the order of growth, hyper-order
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参考文献8

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  • 3Frei M. Uber die subnormalen lasungen der differentialgleichung w'' + e^-zw' + (konst)w = 0[J]. Comment Math. Helv, 1962, 36: 1-8. 被引量:1
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  • 7Zong Xuan CHEN,Kwang Ho SHON.On the Growth and Fixed Points of Solutions of Second Order Differential Equations with Meromorphic Coefficients[J].Acta Mathematica Sinica,English Series,2005,21(4):753-764. 被引量:17
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二级参考文献17

  • 1Hille, E.: Ordinary Differential Equations in the Complex Domain, Wiley, New York, 1976. 被引量:1
  • 2Frei, M.: Uber die subnormalen losungen der differentialgleichung w〃+ e^-zw' + (konst.)w = 0. Comment.Math. Helv., 36, 1-8 (1962). 被引量:1
  • 3Ozawa, M.: On a solution of w〃+ e^-zw' + (az + b)w = 0. Kodai Math. J., 3, 295-309 (1980). 被引量:1
  • 4Gundersen, G.: On the question of whether f〃 + e^-zf' + B(z)f = 0 can admit a solution f absolutely unequal to 0 of finiteorder. Proc, R.S.E., 102(A), 9017 (1986). 被引量:1
  • 5Langley, J. K.: On complex oscillation and a problem of Ozawa. Kodai Math. J., 9, 430-439 (1986). 被引量:1
  • 6Amemiya, I., Ozawa, M.: Non-existence of finite order solutions of w" + e^-zw' + Q(z)2 = 0. Hokkaido Math. J., 10, 1-17 (1981). 被引量:1
  • 7Chen, Z. X.: The growth of solutions of f〃+ e^-zf'+ Q(z)f = 0 where the order (Q) = 1. Science in China (Series A), 45(3), 290-300 (2002). 被引量:1
  • 8Chen, Z. X.: The fixed points and hyper order of solutions of second order complex differential equations. Acta Math. Scierztia, (in Chinese), 20(3), 425-432 (2000). 被引量:1
  • 9Gundersen, G.: Estimates for the logarithmic derivative of a meromorphic function, plus similar estimates. J. London Math. Soc., 37(2), 88-104 (1988). 被引量:1
  • 10Chen, Z. X., Yang, C. C.: Some oscillation theorems for linear differetial equations with meromorphic coefficients. Southeast Asian Bull. of Math., 23, 409- 417 (1999). 被引量:1

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