Results 11 to 20 of about 185 (140)

Dirichlet problem for quasi-linear elliptic equations

open access: yesElectronic Journal of Differential Equations, 2002
We study the Dirichlet Problem associated to the quasilinear elliptic problem $$ -sum_{i=1}^{n}frac{partial }{partial x_i}mathcal{A}_i(x,u(x), abla u(x))+mathcal{B}(x,u(x),abla u(x))=0.
Azeddine Baalal, Nedra Belhaj Rhouma
doaj   +1 more source

Local existence of strong solutions of a fluid-structure interaction model

open access: yes, 2018
We are interested in studying a system coupling the com-pressible Navier-Stokes equations with an elastic structure located at the boundary of the fluid domain.
Mitra, Sourav
core   +4 more sources

On some nonlinear elliptic systems with coercive perturbations in RN [PDF]

open access: yes, 2003
A nonlinear elliptic system involving the p-Laplacian is considered in the whole RN: Existence of nontrivial solutions is obtained by applying critical point theory; also a regularity result is established.A nonlinear elliptic system involving the p ...
El Manouni, Said, Touzani, Abdelfattah
core   +1 more source

Regularity results for singular elliptic problems

open access: yesJournal of Function Spaces, Volume 4, Issue 3, Page 243-259, 2006., 2006
Some local and global regularity results for solutions of linear elliptic equations in weighted spaces are proved. Here the leading coefficients are VMO functions, while the hypotheses on the other coefficients and the boundary conditions involve a suitable weight function.
Loredana Caso, Miroslav Englis
wiley   +1 more source

New Results About the Lambda Constant and Ground States of the 𝑊-Functional

open access: yesAdvanced Nonlinear Studies, 2020
In this paper, we study properties of the lambda constants and the existence of ground states of Perelman’s famous W-functional from a variational formulation. We have two kinds of results.
Ma Li
doaj   +1 more source

Nonanalytic solutions of the KdV equation

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 6, Page 453-460, 2004., 2004
We construct nonanalytic solutions to the initial value problem for the KdV equation with analytic initial data in both the periodic and the nonperiodic cases.
Peter Byers, A. Alexandrou Himonas
wiley   +1 more source

Geometrical Methods for Solving of Fully Nonlinear Partial Differential Equations, by P. Popivanov [PDF]

open access: yes, 2006
[Kutev Nikolai; Кутев Николай]2000 Mathematics Subject Classification: 35-02, 53-02, 35B65, 35C05, 35F20, 35G25, 35L60, 57R45, 58C28 ...
Kutev, Nikolai
core   +1 more source

Which solutions of the third problem for the Poisson equation are bounded?

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 6, Page 501-510, 2004., 2004
This paper deals with the problem Δu = g on G and ∂u/∂n + uf = L on ∂G. Here, G ⊂ ℝm, m > 2, is a bounded domain with Lyapunov boundary, f is a bounded nonnegative function on the boundary of G, L is a bounded linear functional on W1,2(G) representable by a real measure μ on the boundary of G, and g ∈ L2(G)∩Lp(G), p > m/2.
Dagmar Medková
wiley   +1 more source

Results on existence for generalized nD Navier-Stokes equations

open access: yesOpen Mathematics, 2019
In this paper we consider a class of nD Navier-Stokes equations of Kirchhoff type and prove the global existence of solutions by using a new approach introduced in [Jday R., Zennir Kh., Georgiev S.G., Existence and smoothness for new class of n ...
Zennir Khaled
doaj   +1 more source

Coefficients of singularities of the biharmonic problem of Neumann type: case of the crack

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 5, Page 305-313, 2003., 2003
This paper concerns the biharmonic problem of Neumann type in a sector V. We give a representation of the solution u of the problem in a form of a series u = ∑α∈ECα rα ϕα, and the functions ϕα are solutions of an auxiliary problem obtained by the separation of variables.
Wided Chikouche, Aissa Aibèche
wiley   +1 more source

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