J. Nonl. Mod. Anal., 4 (2022), pp. 658-676.
Published online: 2023-08
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In this paper, based on the one-signed Green’s function and the compact results on the infinite interval, we obtain the existence and multiplicity of positive solutions for the boundary value problems $$\begin{cases} \Delta^2 x(n-1)-p(n)\Delta x(n-1)-q(n)x(n-1)+f(n,x(n))=0, &n\in\mathbb{N},\\ \alpha x(0)-\beta \Delta x(0)=0, & \lim\limits_{n\rightarrow\infty}x(n)=0 \end{cases}$$by the fixed point theorem in cones. The main results extend some results in the previous literature.
}, issn = {2562-2862}, doi = {https://doi.org/10.12150/jnma.2022.658}, url = {http://global-sci.org/intro/article_detail/jnma/21904.html} }In this paper, based on the one-signed Green’s function and the compact results on the infinite interval, we obtain the existence and multiplicity of positive solutions for the boundary value problems $$\begin{cases} \Delta^2 x(n-1)-p(n)\Delta x(n-1)-q(n)x(n-1)+f(n,x(n))=0, &n\in\mathbb{N},\\ \alpha x(0)-\beta \Delta x(0)=0, & \lim\limits_{n\rightarrow\infty}x(n)=0 \end{cases}$$by the fixed point theorem in cones. The main results extend some results in the previous literature.