两类带非线性混合边界条件的四阶微分方程三点边值问题

摘要

结合微分不等式理论与打靶法,研究了两类带非线性混合边界条件的四阶微分方程三点边值问题,证明了解的存在性定理并得到了解的估计.

关键词

四阶微分方程三点边值问题微分不等式上下解打靶法 forth-order differential equation three-point boundary value problem differential inequality upper and lower solution shooting method