数学物理学报 ›› 1999, Vol. 19 ›› Issue (5): 559-564.

• 论文 • 上一篇    下一篇

Banach空间中高阶常微分方程初边值问题的可解性

  

  1. (海南大学理工学院 海口 570228)

  • 出版日期:1999-12-05 发布日期:1999-12-05

On the Solvability of Initial and Boundary Value Problems for High Order Ordinary Differential Equations in Banach Spaces

  1. (College of Science and engineering, Hainan University, Haikou 570228)

  • Online:1999-12-05 Published:1999-12-05

摘要:

利用基于度理论的不动点定理,该文给出了Banach空间中n阶常微分方程的初、边值问题有解的某些充分条件,同时证明了一类最大最小解的存在性.推广了现有文献中的某些结果.

关键词: 边值问题, 集压缩算子, 不动点, 非紧性测度.

Abstract:

 In this paper, by using certain fixed points theorem based on the degree theory, some sufficient conditions for the existence of solutions of initial and boundary value problems for n order ordinary differential equations in Banach spaces are given, moreover, the authors get existence of maximal and minimal solutions. The results are extension of reference [1-2].

Key words: Boundary value problems, Set-contract operators, Fixed points, Non- compactness measures.

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