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Existence and Multiplicity of Constant Sign Solutions for One-Dimensional Beam Equation
Bulletin of the Malaysian Mathematical Sciences Society ( IF 1.2 ) Pub Date : 2020-09-03 , DOI: 10.1007/s40840-020-01002-w
Dongliang Yan , Ruyun Ma , Zhongzi Zhao

In this paper, we consider the nonlinear eigenvalue problems

$$\begin{aligned} \begin{aligned}&u''''=\lambda h(t)f(u), \quad 0<t<1, \\&u(0)=u(1)=u'(0)=u'(1)=0, \end{aligned} \end{aligned}$$

where \(h\in C([0,1], (0,\infty ))\); \(f\in C({\mathbb {R}},{\mathbb {R}})\) and \(sf(s)>0\) for \(s\ne 0\), and \(f_0=f_\infty =0\), \(f_0=\lim _{|s|\rightarrow 0}f(s)/s, \; f_\infty =\lim _{|s|\rightarrow \infty }f(s)/s\). We investigate the global structure of one-sign solutions by using bifurcation techniques.



中文翻译:

一维梁方程的常数符号解的存在性和多重性

在本文中,我们考虑了非线性特征值问题

$$ \ begin {aligned} \ begin {aligned&u''''= \ lambda h(t)f(u),\ quad 0 <t <1,\\&u(0)= u(1)= u '(0)= u'(1)= 0,\ end {aligned} \ end {aligned} $$

其中\(h \ in C([0,1],(0,\ infty))\) ; \(f \ in C({\ mathbb {R}},{\ mathbb {R}})\)\(sf(s)> 0 \)表示\(s \ ne 0 \)\(f_0 = f_ \ infty = 0 \)\(f_0 = \ lim _ {| s | \ rightarrow 0} f(s)/ s,\; f_ \ infty = \ lim _ {| s | \ rightarrow \ infty} f (s)/ s \)。我们通过使用分叉技术来研究一个信号解决方案的全局结构。

更新日期:2020-09-05
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