Results 51 to 60 of about 511,067 (272)

Boundary regularity for viscosity solutions of fully nonlinear elliptic equations

open access: yes, 2013
We provide regularity results at the boundary for continuous viscosity solutions to nonconvex fully nonlinear uniformly elliptic equations and inequalities in Euclidian domains.
Silvestre, Luis, Sirakov, Boyan
core   +1 more source

Nonlinear elliptic problems with the method of finite volumes

open access: yesDifferential Equations and Nonlinear Mechanics, 2006
We present a finite volume discretization of the nonlinear elliptic problems. The discretization results in a nonlinear algebraic system of equations.
Sanjay Kumar Khattri
doaj   +1 more source

Gradient estimates and comparison principlefor some nonlinear elliptic equations

open access: yes, 2015
We consider a class of Dirichlet boundary problems for nonlinear elliptic equations with a first order term. We show how the summability of the gradient of a solution increases when the summability of the datum increases.
M. Betta   +3 more
semanticscholar   +1 more source

Free Vibration Analysis of Nonlinear Structural-Acoustic System with Non-Rigid Boundaries Using the Elliptic Integral Approach

open access: yesMathematics, 2020
This study addresses the free vibration analysis of nonlinear structural-acoustic system with non-rigid boundaries. In practice, the boundaries of a panel–cavity system are usually imperfectly rigid.
Yiu-yin Lee
doaj   +1 more source

SECOND-ORDER ESTIMATES AND REGULARITY FOR FULLY NONLINEAR ELLIPTIC EQUATIONS ON RIEMANNIAN MANIFOLDS [PDF]

open access: yes, 2012
We derive a priori second order estimates for solutions of a class of fully nonlinear elliptic equations on Riemannian manifolds under some very general structure conditions.
Bo Guan
semanticscholar   +1 more source

Overdetermined problems for fully nonlinear elliptic equations [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2013
We study the situation in which a solution to a fully nonlinear elliptic equation in a bounded domain Ω\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage ...
L. Silvestre, B. Sirakov
semanticscholar   +1 more source

New Periodic Solutions for a Class of Zakharov Equations

open access: yesAdvances in Mathematical Physics, 2016
Through applying the Jacobian elliptic function method, we obtain the periodic solution for a series of nonlinear Zakharov equations, which contain Klein-Gordon Zakharov equations, Zakharov equations, and Zakharov-Rubenchik equations.
Cong Sun, Shuguan Ji
doaj   +1 more source

Lipschitz regularity results for nonlinear strictly elliptic equations and applications

open access: yes, 2016
Most of lipschitz regularity results for nonlinear strictly elliptic equations are obtained for a suitable growth power of the nonlinearity with respect to the gradient variable (subquadratic for instance).
Ley, Olivier, Nguyen, Vinh Duc
core   +2 more sources

A bifurcation-type theorem for singular nonlinear elliptic equations

open access: yes, 2015
We consider a parametric nonlinear Dirichlet problem driven by the p-Laplacian and exhibiting the combined effects of singular and superlinear terms. Using variational methods combined with truncation and comparison techniques, we prove a bifurcation ...
Nikolaos S. Papageorgiou, G. Smyrlis
semanticscholar   +1 more source

Elliptic regularizations for the nonlinear heat equation

open access: yesJournal of Mathematical Analysis and Applications, 2009
AbstractThe purpose of this paper is to study two elliptic regularizations for the nonlinear heat equation with nonlinear boundary conditions formulated below. Asymptotic expansions of the order zero for the solutions of these elliptic regularizations are established, including some boundary layer corrections.
Emil Cosma, Luminiţa Barbu
openaire   +2 more sources

Home - About - Disclaimer - Privacy