학술논문
Multiplicity results for sign-changing solutions of an operator equation in ordered Banach space
Document Type
TEXT
Author
Source
Mathematica bohemica | 2009 Volume:134 | Number:4
Subject
Language
English
Abstract
In this paper, we prove some multiplicity results for sign-changing solutions of an operator equation in an ordered Banach space. The methods to show the main results of the paper are to associate a fixed point index with a strict upper or lower solution. The results can be applied to a wide variety of boundary value problems to obtain multiplicity results for sign-changing solutions.