Results 31 to 40 of about 75,181 (273)

Semilinear elliptic equations and supercritical growth

open access: yesJournal of Differential Equations, 1987
\textit{H. Brezis} and \textit{L. Nirenberg} have proved the existence of positive solutions of the problem \(\Delta \tilde u+\lambda \tilde u+\tilde u^ p=0\) in \(\Omega\) and \(\tilde u=0\) on \(\partial \Omega\) for \(p\leq p_ c=(n+2)/(n-2)\), when the embedding of \(H^ 1_ 0(\Omega)\) in \(L^{p+1}(\Omega)\) is continuous [Commun. Pure Appl. Math. 36,
Budd, C, Norbury, J
openaire   +2 more sources

Topological Derivatives for Semilinear Elliptic Equations [PDF]

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2009
Topological Derivatives for Semilinear Elliptic EquationsThe form of topological derivatives for an integral shape functional is derived for a class of semilinear elliptic equations. The convergence of finite element approximation for the topological derivatives is shown and the error estimates in theL∞norm are obtained.
Iguernane, Mohamed   +4 more
openaire   +3 more sources

A new proof of the boundedness results for stable solutions to semilinear elliptic equations [PDF]

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2019
We consider the class of stable solutions to semilinear equations $-\Delta u=f(u)$ in a bounded smooth domain of $\mathbb{R}^n$. Since 2010 an interior a priori $L^\infty$ bound for stable solutions is known to hold in dimensions $n \leq 4$ for all $C^1$
X. Cabré
semanticscholar   +1 more source

On the existence of multiple positive entire solutions for a class of quasilinear elliptic equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Our goal is to establish the theorems of existence and multiple of positive entire solutions for a class quasilinear elliptic equations in ℝN with the Schauder-Tychonoff fixed point theorem as the principal tool.
Yang Zuodong
doaj   +1 more source

Boundedness of Stable Solutions to Semilinear Elliptic Equations: A Survey [PDF]

open access: yes, 2017
This article is a survey on boundedness results for stable solutions to semilinear elliptic problems.For these solutions, we present the currently known L∞${L^{\infty}}$ estimates that hold for all nonlinearities.Such estimates are known to hold up to ...
X. Cabré
semanticscholar   +2 more sources

On the exact multiplicity of stable ground states of non-Lipschitz semilinear elliptic equations for some classes of starshaped sets [PDF]

open access: yesAdvances in Nonlinear Analysis, 2018
We prove the exact multiplicity of flat and compact support stable solutions of an autonomous non-Lipschitz semilinear elliptic equation of eigenvalue type according to the dimension N and the two exponents, 0 < α < β < 1, of the involved nonlinearites ...
J. Díaz   +2 more
semanticscholar   +1 more source

Positive Solutions for Elliptic Problems with the Nonlinearity Containing Singularity and Hardy-Sobolev Exponents

open access: yesJournal of Function Spaces, 2020
In this paper, we study multiplicity of positive solutions for a class of semilinear elliptic equations with the nonlinearity containing singularity and Hardy-Sobolev exponents.
Yong-Yi Lan, Xian Hu, Bi-Yun Tang
doaj   +1 more source

AN EXISTENCE AND UNIQUENESS OF THE SOLUTION OF SEMILINEAR MONOTONE ELLIPTIC EQUATION WITH THE DATA IN STUMMEL CLASSES

open access: yesBarekeng, 2023
Let  be a bounded open subset of , ,  be a function in Stummel classes , where , and be a semilinear monotone elliptic equation, where  is  symmetric matrix, elliptic, bounded, and  is non decreasing and Lipschitz. By proving a weighted estimation for
Nicky Kurnia Tumalun
doaj   +1 more source

Analysis of control problems of nonmontone semilinear elliptic equations [PDF]

open access: yes, 2019
In this paper we study optimal control problems governed by a semilinear elliptic equation. The equation is nonmonotone due to the presence of a convection term, despite the monotonocity of the nonlinear term.
E. Casas, M. Mateos, A. Rösch
semanticscholar   +1 more source

Asymptotic solutions of semilinear elliptic equations

open access: yesJournal of Mathematical Analysis and Applications, 1984
Semilinear elliptic equations of the form \(Lu\equiv \Delta u-p(| x|)u+uf(x,u)=0\) are considered in exterior domains in \({\mathbb{R}}^ n\) for \(n\geq 2\). Both necessary and sufficient conditions are established for such equations to have positive solutions with prescribed asymptotic behavior as \(| x| \to \infty\).
Charles A. Swanson, Kurt Kreith
openaire   +2 more sources

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