Results 11 to 20 of about 243 (108)

Anisotropic problems with unbalanced growth

open access: yesAdvances in Nonlinear Analysis, 2020
The main purpose of this paper is to study a general class of (p, q)-type eigenvalues problems with lack of compactness. The reaction is a convex-concave nonlinearity described by power-type terms.
Alsaedi Ahmed, Ahmad Bashir
doaj   +1 more source

Existence and multiplicity of solutions for fourth-order elliptic equations of Kirchhoff type via genus theory

open access: yesBoundary Value Problems, 2014
In this paper, we study the following fourth-order elliptic equations of Kirchhoff type: △2u−(a+b∫R3|∇u|2dx)△u+V(x)u=f(x,u), in R3, u∈H2(R3), where a,b>0 are constants, we have the potential V(x):R3→R and the nonlinearity f(x,u):R3×R→R.
Li-Ping Xu, Hai-Bo Chen
semanticscholar   +1 more source

Positive Solutions for Some Weighted Elliptic Problems

open access: yes, 2020
In this study, we study the existence and the nonexistence of positive solutions for the following nonlinear elliptic problems:  (P)where, Ω is a regular bounded domain in ℝ , N ≥ 2, a(x) is a smooth function on   and f(x, s) is asymptotically linear in ...
H. Zahed
semanticscholar   +1 more source

Global boundedness, interior gradient estimates, and boundary regularity for the mean curvature equation with boundary conditions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 18, Page 913-948, 2004., 2004
We obtain global estimates for the modulus, interior gradient estimates, and boundary Hölder continuity estimates for solutions u to the capillarity problem and to the Dirichlet problem for the mean curvature equation merely in terms of the mean curvature, together with the boundary contact angle in the capillarity problem and the boundary values in ...
Fei-Tsen Liang
wiley   +1 more source

Hydrodynamic equations for incompressible inviscid fluid in terms of generalized stream function

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 11, Page 541-570, 2004., 2004
Hydrodynamic equations for ideal incompressible fluid are written in terms of generalized stream function. Two‐dimensional version of these equations is transformed to the form of one dynamic equation for the stream function. This equation contains arbitrary function which is determined by inflow conditions given on the boundary.
Yuri A. Rylov
wiley   +1 more source

Existence and multiplicity results for a Steklov problem involving (p(x), q(x))-Laplacian operator

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
In this work, we are concerned with a generalized Steklov problem with (p(x), q(x))-Laplacian operator. Under some appropriate conditions on the data involved in the elliptic problem, we prove the existence of at least three solutions using Ricceri’s ...
Karim Belhadj   +3 more
doaj   +1 more source

A Dirichlet problem with asymptotically linear and changing sign nonlinearity [PDF]

open access: yes, 2003
This paper deals with the problem of finding positive solutions to the equation ¡¢u = g(x; u) on a bounded domain ­; with Dirichlet boundary conditions. The function g can change sign and has asymptotically linear behaviour.
Lucia, Marcello   +2 more
core   +1 more source

Multiplicity of solutions for a class of quasilinear problem in exterior domains with Neumann conditions

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 3, Page 251-268, 2004., 2004
We study the existence and multiplicity of solutions for a class of quasilinear elliptic problem in exterior domain with Neumann boundary conditions.
Claudianor O. Alves   +2 more
wiley   +1 more source

Uniqueness of Radial Solutions of Semilinear Elliptic Equations [PDF]

open access: yes, 1992
E. Yanagida recently proved that the classical Matukuma equation with a given exponent has only one finite mass solution. We show how similar ideas can be exploited to obtain uniqueness results for other classes of equations as well as Matukuma equations
Kwong, Man Kam   +3 more
core   +1 more source

Continuum limits of particles interacting via diffusion

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 3, Page 215-237, 2004., 2004
We consider a two‐phase system mainly in three dimensions and we examine the coarsening of the spatial distribution, driven by the reduction of interface energy and limited by diffusion as described by the quasistatic Stefan free boundary problem. Under the appropriate scaling we pass rigorously to the limit by taking into account the motion of the ...
Nicholas D. Alikakos   +2 more
wiley   +1 more source

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