Third-order boundary value problems with sign-changing solutions

被引:53
作者
Hopkins, Britney [1 ]
Kosmatov, Nickolai [1 ]
机构
[1] Univ Arkansas, Dept Math & Stat, Little Rock, AR 72204 USA
关键词
a priori estimate; Caratheodory; Leray-Schauder Continuation Principle;
D O I
10.1016/j.na.2006.05.003
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We consider the third-order nonlinear differential equation u''' (t) = f (t, u (t), u'(t), u" (t)), a.e. t is an element of (0, 1), satisfying u(0) = u'(0) = u"(1) = 0 and u(0) = u'(1) = u"(1) = 0, where f : [0, 1] x R-3 -> R is L-p-Caratheodory, 1 <= p < infinity. We obtain the existence of at least one positive solution using the Leray-Schauder Continuation Principle for each set of boundary conditions by separately considering the cases p > 1 and p = 1. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:126 / 137
页数:12
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