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complex oscillation
    Properties of Complex Oscillation of the Solutions of Some Higher Order Linear Differential Equations
    某些高阶线性微分方程解的复振荡性质
    The Properties of Complex Oscillation of the Solutions of Some Types of Linear Differential Equations
    几类线性微分方程解的复振荡性质
    The Complex Oscillation Theory of Solutions of Some Differential Equations with Entire Coefficients
    某些整函数系数微分方程解的复振荡理论
    The Complex Oscillation Properties of the Solutions of Some Types of Linear Differential Equations
    几类线性微分方程解的复振荡性质
    The second-order linear differential equation f″+ P (z)f′+ Q (z)f=0 is studiedwhere P(z) and Q(z) are polynomials. The complex oscillation properties of itssolutions, i. e. the comparison of the convergence-exponent of zeros to its order ofgrowth are obtained.
    本文着重研究了二阶线性微分方程 f″+P(z)f′+Q(z)f=0(其中P(z)、Q(z)为多项式)的解的复振荡性质,即其解的零点收敛指数与增长级的比较,得到了一些结果。
    The seoond-order linear differential equation f″+P(z)f′+Q(z)f=0 is studied where P(z) and Q(z) are polynomials. The complex oscillation properties of its solutions, i. e. the comparison of the convergenoe-exponent of zeros to its order of growth are obtained.
    本文着重研究了二阶线性微分方程 f″+P(z)f′+Q(z)f=0 (其中P(z)、Q(z)为多项式)的解的复振荡性质,即其解的零点收敛指数与增长级的比较,得到了一些结果。
    Under weaker conditions ,the complex oscillation for a class of linear differential equations w(k)+Ak-2wk-2+…+A1w′+(A0+A)w=0 is discussed. Obtained some properties of solutions for the equations under the case of A havine zero or not.
    本文在较弱的条件下讨论方程w(k)+Ak-2w(k-2)+…+A1w′+(A0+A)w=0的复振荡问题,得到了在A是否有零点的情况下,方程的解的一些性质
    In this paper,we investigate the complex oscillation of the differential equationf (4) +k 2f″+k 1f′+e zf=0,where k 1,k 2 are constants.
    研究齐次方程f(4)+k2f″+k1f′+ezf=0的复振荡问题,其中k1、k2为复常数.
    In this paper,the complex oscillation of the different ia l equation f- (4)+kf′+e-zf=0,where k i s a complex constant has been investigated.
    研究了齐次方程 f(4 ) +kf′ +ezf =0的复振荡 ,其中k∈C为常数 .
    The paper investigate the complex oscillation of the differential equationf (k) +bf′+e zf=0,where b is a complex constant.
    研究了齐次微分方程f( k) +bf′+ezf =0的复振荡问题 ,其中 b为复常数 .
 

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