数学物理学报(英文版) ›› 1990, Vol. 10 ›› Issue (3): 355-360.

• 论文 • 上一篇    

OSCILLATORY BEHAVIOUR OF SOLUTIONS OF y''+P(x)y=f(x)

A. A. S. Zaghrout, A. A. Ragab   

  1. Department of Mathematics, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
  • 收稿日期:1984-07-12 修回日期:1989-06-13 出版日期:1990-09-25 发布日期:1990-09-25

OSCILLATORY BEHAVIOUR OF SOLUTIONS OF y''+P(x)y=f(x)

A. A. S. Zaghrout, A. A. Ragab   

  1. Department of Mathematics, Faculty of Science, Al-Azhar University, Nasr City, Cairo, Egypt
  • Received:1984-07-12 Revised:1989-06-13 Online:1990-09-25 Published:1990-09-25

摘要:

This paper is a study of the oscillatory and asymptotic behaviour of solutions of the second order nonhomogeneous linear differential equation y"+P(x)y=f(x), and the associated homogeneous equation. Conditions are determined, under which the nonhomogeneous equation is oscillatory if and only if the homogeneous equation is oscillatory.

Abstract:

This paper is a study of the oscillatory and asymptotic behaviour of solutions of the second order nonhomogeneous linear differential equation y"+P(x)y=f(x), and the associated homogeneous equation. Conditions are determined, under which the nonhomogeneous equation is oscillatory if and only if the homogeneous equation is oscillatory.