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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao zbMATH Openarrow_drop_down
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zbMATH Open
Article . 1991
Data sources: zbMATH Open
Journal of Partial Differential Equations
Article . 1991 . Peer-reviewed
Data sources: Crossref
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The Boundedness for Generalized Solutions of Quasilinear Elliptic Equations

The boundedness for generalized solutions of quasilinear elliptic equations
Authors: Liang, Xiting;

The Boundedness for Generalized Solutions of Quasilinear Elliptic Equations

Abstract

Let \(G\) be a bounded domain in \(E^ n\) and \(p>1\). Consider the following elliptic equation \[ \int_ G\{\nabla v\cdot A(x,u,\nabla u)+vB(x,u,\nabla u)\}dx=0,\quad\forall v\in{\overset\circ W^ 1_ p}(G)\cap L_ \infty(G), \tag{1} \] where \(A(x,u,\xi)\) and \(B(x,u,\xi)\) are defined on \(G\times E^ 1\times E^ n\), continuous in \(u\) and \(\xi\) for fixed \(x\) and measurable in \(x\) for fixed \(u\) and \(\xi\), respectively. Moreover, suppose \(A\) and \(B\) satisfy: \[ \begin{aligned}\nabla u\cdot A(x,u,\nabla u) & \;\geq\;|\nabla u|^ p-K| u|^ q-f_ 0(x),\\ | A(x,u,\nabla u)| & \;\leq \;K_ 1|\nabla u|^{p-1}+K| u|^{q/p'}+f_ 1(x),\\ | B(x,u,\nabla u)| & \;\leq \;C(x)|\nabla u|^ \gamma+K| u|^{q- 1}+f_ 2(x), \end{aligned}\tag{2} \] where \(1n/(p- \gamma)\) as \(\gamma>p-1\), \(f_ i(x)\in L_{S_ i}(G)\) \((i=0,1,2)\), \(S_ 0\), \(S_ 2>n/p\) and \(S_ 1>n/(p-1)\). Now let \(t=n(\gamma+1-p)/(p-\gamma)\) as \(r=\infty\); \(t=nr(\gamma+1- p)/(r(p-\gamma)-n)\) as \(n/(p-\gamma)0\) such that \(\text{mes} B(x_ 0,\rho)\backslash G\geq \theta \text{mes} B(x_ 0,\rho)\), \(\forall x_ 0\in\partial G\), \(\rho\leq R\) is fulfilled, then the solution \(u\in{\overset\circ W^ 1_ p}(G)\cap L_ t(G)\) of the equation (1) is globally bounded on \(G\) and uniformly Hölder continuous on \(G\).

Keywords

Regularity of generalized solutions of PDE, Second-order elliptic equations, critical exponent, Hölder continuity, natural growth condition, Nonlinear elliptic equations, Stability in context of PDEs

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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