Convergence Theorems and Asymptotic Integration for Functional Differential Equations
β Scribed by Feiqi Deng; Yongquing Liu; Zhaoshu Feng
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 170 KB
- Volume
- 206
- Category
- Article
- ISSN
- 0022-247X
No coin nor oath required. For personal study only.
β¦ Synopsis
This paper is devoted to the investigation on convergence of solutions and Ε½ . asymptotic integration of some functional differential equations FDEs . In the first part of the paper, some convergence criteria are obtained, and an invariance principle is established for the convergence of solutions of linear FDEs under perturbations and disturbances with L 1 -integrable coefficients. These theorems are applicable to some nonlinear or nonhomogeneous equations. In the second part, the convergence theorems are applied to investigate the asymptotic integration of some linear FDEs. This research is made mainly to discuss a situation that was avoided by some previous literature. Some examples are given to illustrate the theorems.
π SIMILAR VOLUMES
## Abstract Our aim in this paper is to obtain the comparison principles which extend those of Grace and LALLI. The equations. L~n~u(t)Β±f(t, u[g(t)]= 0 are compared with the equations. M~n~u(t)Β±z(t)h([Ο(t)])= 0.
New theoremrj on the oscillatory and asymptotic behavior of solutions of t h e damped differential equations with deviating arguments of the form and z -w -PW z ~" + w i(zrmi) = o , are established.