Acta mathematica scientia,Series A ›› 1999, Vol. 19 ›› Issue (5): 559-564.

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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

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.

CLC Number: 

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