【www.chuban323.com--英语论文】
【英文作者】 XU Hua-zhong1; WU Yan-shu2; SUN Jian-wu1 （1.Department of Mathematics and Information Science; Binzhou University; Binzhou; Shandong; 256603; China; 2.School of Elementary Education; China）;
【文献出处】Journal of Xuzhou Normal University(Natural Science Edition),
【英文关键词】 second-order; nonlinear; impulsive differential equations; oscillation;
【英文摘要】 The oscillation of second-order nonlinear differential equations with impulses is discussed.Sufficient conditions for all solutions of the equation to be oscillatory are obtained.
0 IntroductionIn[1],the authors discussed the oscillation of the equation(r(t)φ(x(t))x′(t))′+p(t)f(x(t))=0,and established several theorems of ocsillation.In recent years,the discussion of oscillation of the i m-pulsive differential equations has becom
oscillation什么意思 oscillations amplitude