Results 1 to 10 of about 350 (69)

A fractional Kirchhoff problem involving a singular term and a critical nonlinearity [PDF]

open access: yesAdvances in Nonlinear Analysis, 2017
In this paper, we consider the following critical nonlocal problem:
Fiscella Alessio
doaj   +2 more sources

Dirichlet problems for fully nonlinear equations with ”subquadratic” HamiltoniansMathematical Subject Classification : 35J70, 35J75

open access: green, 2019
For a class of fully nonlinear equations having second order operators which may be singular or degenerate when the gradient of the solutions vanishes, and having first order terms with power growth, we prove the existence and uniqueness of suitably defined viscosity solution of Dirichlet problem and we further show that it is a Lipschitz continuous ...
Birindelli, Isabeau   +2 more
openaire   +3 more sources

Ergodic pairs for singular or degenerate fully nonlinear operatorsMathematical Subject Classification : 35J70, 35J75

open access: green, 2019
We study the ergodic problem for fully nonlinear operators which may be singular or degenerate when the gradient of solutions vanishes. We prove the convergence of both explosive solutions and solutions of Dirichlet problems for approximating equations.
Birindelli, Isabeau   +2 more
openaire   +3 more sources

Singular quasilinear convective elliptic systems in ℝN

open access: yesAdvances in Nonlinear Analysis, 2022
The existence of a positive entire weak solution to a singular quasi-linear elliptic system with convection terms is established, chiefly through perturbation techniques, fixed point arguments, and a priori estimates.
Guarnotta Umberto   +2 more
doaj   +1 more source

Existence and Regularity for Solution to a Degenerate Problem with Singular Gradient Lower Order Term

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
We study the existence and regularity results for non-linear elliptic equation with degenerate coercivity and a singular gradient lower order term. The model problems is {-div(b(x)|∇u|p-2∇u(1+|u|)γ)+|∇u|p|u|θ=f,in Ω,u=0,on ∂Ω,\left\{ {\matrix{ { - div ...
Khelifi Hichem
doaj   +1 more source

The impact of a lower order term in a Dirichlet problem with a singular nonlinearity

open access: yesPortugaliae Mathematica, 2020
In this paper we study the existence and regularity of solutions to the following Dirichlet problem        −div(a(x)|∇u| p−2 ∇u) + u|u| r−1 = f (x) u θ in Ω, u > 0 in Ω, u = 0 on ∂Ω proving that the lower order term u|u| r−1 has some regularizing ...
L. Boccardo, G. Croce
semanticscholar   +1 more source

A High-Order Discontinuous Galerkin Solver for Helically Symmetric Flows

open access: yes, 2021
We present a high-order discontinuous Galerkin (DG) scheme to solve the system of helically symmetric Navier-Stokes equations which are discussed in [28].
D. Dierkes, F. Kummer, D. Pluemacher
semanticscholar   +1 more source

Bifurcation analysis for a modified quasilinear equation with negative exponent

open access: yesAdvances in Nonlinear Analysis, 2021
In this paper, we consider the following modified quasilinear problem:
Chen Siyu   +3 more
doaj   +1 more source

Refined second boundary behavior of the unique strictly convex solution to a singular Monge-Ampère equation

open access: yesAdvances in Nonlinear Analysis, 2021
In this paper, we establish the second boundary behavior of the unique strictly convex solution to a singular Dirichlet problem for the Monge-Ampère ...
Wan Haitao, Shi Yongxiu, Liu Wei
doaj   +1 more source

Deforming a Convex Hypersurface by Anisotropic Curvature Flows

open access: yesAdvanced Nonlinear Studies, 2021
In this paper, we consider a fully nonlinear curvature flow of a convex hypersurface in the Euclidean 𝑛-space. This flow involves 𝑘-th elementary symmetric function for principal curvature radii and a function of support function.
Ju HongJie, Li BoYa, Liu YanNan
doaj   +1 more source

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