摘要
利用增算子不动点定理证明了非线性中立型方程正解的存在性
A sufficient condition for the existence of a positive solution of n th order nonlinear neutral functional differential equations (x(t)-f(t,x(τ(t)))) (n) +m 1i=1f i(t,x(g i(t)))+p(t)m 2i=1x α i (t-σ i)=0 is obtained.The proof is based on the increasing operator fixed point theorem.
出处
《山东建筑工程学院学报》
1994年第2期59-64,共6页
Journal of Shandong Institute of Architecture and Engineering
关键词
不动点定理
非线性
中立型
正解
fixed point theorem
nonlinear neutral type
positive solution
