arXiv subjects

Abiel Macedo

Publications and source records attributed to Abiel Macedo.

3 recordsLinked to original sources

arXiv2024

On a quadratic gradient natural term for the Pucci extremal operators

We introduce a quadratic gradient type term for the Pucci extremal operators. Our analysis demonstrates that this proposed term extends the classical quadratic gradient term associated with the Laplace equation, and we investigate the impact of the Kazdan-Kramer transformation. As an application, we explore the existence, non-existence, uniqueness, Liouville-type results, and asymptotic behavior of solutions for the new class of Pucci equations under various conditions on both nonlinearity and domains.

math.AP↗

arXiv2018

On The Extremal Parameters Curve of a Quasilinear Elliptic System of Differential Equations

We consider a system of quasilinear elliptic equations, with indefinite super-linear nonlinearity, depending on two real parameters $λ,μ$. By using the Nehari manifold and the notion of extremal parameter, we extend some results concerning existence of positive solutions.

math.AP↗

arXiv2017

Local minimizers over the Nehari manifold for a class of concave-convex problems with sign changing nonlinearity

We study a $p$-Laplacian equation involving a parameter $λ$ and a concave-convex nonlinearity containing a weight which can change sign. By using the Nehari manifold and the fibering method, we show the existence of two positive solutions on some interval $(0,λ^*+\varepsilon)$, where $λ^*$ can be characterized variationally. We also study the asymptotic behavior of solutions when $λ\downarrow 0$.

math.AP↗