2 citations · 5 across the 36 of their papers we have counts for
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Well-Posedness and Monotone Analysis for a Coupled Sublinear Lane--Emden--Fowler System on Bounded Domains
Dragos-Patru Covei
We investigate a coupled system of elliptic equations of Lane--Emden--Fowler type on a bounded domain () with homogeneous Dirichlet boundary condi…
Radial and Non-Radial Solution Structures for Quasilinear Hamilton--Jacobi--Bellman Equations in Bounded Settings
Dragos-Patru Covei
This paper establishes the existence, uniqueness, and global regularity of positive classical solutions to a class of quasilinear Hamilton--Jacobi--Bellman (HJB) equation…
Entire Large Solutions for Competitive Semilinear Elliptic Systems with General Nonlinearities Satisfying Keller--Osserman Conditions
Dragos-Patru Covei
We study positive radial solutions of the weighted cooperative system , in , , when the Newtonian potentials of the nonne…
Existence and large radial solutions for an elliptic system under finite new Keller-Osserman integral conditions
Dragos-Patru Covei
We study the semilinear elliptic system \[ Δu = p(|x|)\,g(v), \qquad Δv = q(|x|)\,f(u), \qquad x \in \mathbb{R}^n,\; n \geq 3, \] under new Keller--Osserman-type integral condition…
An Iterative PDE Based Illumination Restoration Scheme for Image Enhancement
Dragos-Patru Covei
We present a novel iterative scheme for restoring uneven illumination in grayscale images. Our approach solves, at each global iteration, a nonlinear elliptic equation for an auxil…
Well-Posedness and Numerical Approximation of a Class of Nonlocal Elliptic Equations with Gaussian Kernels
Dragos-Patru Covei
This paper investigates the mathematical properties and numerical approximation of a class of nonlocal elliptic partial differential equations of the form \begin{equation*} -Δu + λ…