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一类线性微分方程解的零点性质和复振荡
PROPERTIES OF ZEROS OF SOLUTIONS AND COMPLEX OSCILLATION OF A CLASS OF LINEAR DIFFERENTIAL EQUATIONS
【摘要】 本文证明了当方程W(k)+Ak-1w(k-1)+…+A1W’+(A0+Ge)w=0的系数满足某种优势条件时,它的解的零点性质.由此,我们得到了该类方程复振荡的若干结果.该类方程已为众多研究者所研究.
【Abstract】 This paper proves the properties of zeros or solutions to the equation w(k)+Ak-1w(k-1)+…+A1w’+(A0+Ge)w=0 when its coefficients satisfy some dominant conditions. From these properties, some results of complex oscillation for the class of equations are obtained.
【关键词】 复振荡;
零点收敛指数;
增长级;
微分方程;
微分多项式;
【Key words】 complex oscillation; the exponent of convergence of zero-sequence; the order of growth; differential equation; differential polynominal;
【Key words】 complex oscillation; the exponent of convergence of zero-sequence; the order of growth; differential equation; differential polynominal;
【基金】 国家自然科学基金
- 【文献出处】 华南师范大学学报(自然科学版) ,JOURNAL OF SOUTH CHINA NORMAL UNIVERSITY , 编辑部邮箱 ,1996年04期
- 【分类号】O241.7
- 【被引频次】1
- 【下载频次】29