In the fourth chapter we study the fourth-order semilinear elliptic equationΔ~2u+a~2Δu=bg(x, u).
4．在第四部分考察四阶半线性椭圆方程~2u+α~2u=bg(x，u)。
参考来源 - 双调和方程解的存在性This paper consists of four chapters , which mainly investigated the oscillatory behavior of second order half-linear difference equations and higher order nonlinear difference equations with continuous variables.
本文共有四章，主要讨论了二阶半线性差分方程的振动性及具有连续变量的高阶非线性差分方程的振动性。
参考来源 - 两类差分方程的振动性·2,447,543篇论文数据，部分数据来源于NoteExpress
研究一类半线性拟抛物方程的初边值问题。
Study the initial boundary value problem of semilinear pseudoparabolic equations.
研究了一类奇摄动半线性边值问题解的边界层性质。
The boundary layer behavior of a class of semilinear singular perturbation problem is studied.
本文研究了一个半线性椭圆型方程正整体解的存在性问题。
In this paper we study the existence of positive global solutions for a semilinear elliptic equation.
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