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arXiv 1812.00829math.AP
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$Φ$ -Laplacian算子驱动的拟线性椭圆问题的正则性结果

Revised regularity results for quasilinear elliptic problems driven by the $Φ$-Laplacian operator

E. D. Silva, M. L. Carvalho, J. C. de Albuquerque

摘要:

建立了由\begin{equation*} \left\{\ \begin{array}{cl} \displaystyle-Δ_Φu= g(x,u), & \mbox{in}~Ω, u=0, & \mbox{on}~\partial Ω, \end{array} \right. \end{equation*}给出的著名的$Φ$-Laplacian算子驱动的拟线性椭圆型问题弱解的正则性结果,其中$Δ_Φu :=\mbox{div}(ϕ(|\nabla u|)\nabla u)$和$Ω\subset\mathbb{R}^{N}, N \geq 2,$是具有光滑边界的有界区域$\partialΩ$ .我们的工作关注的非线性$g$,可以是均匀的或非均匀的。对于齐次的情况下,我们考虑的存在性结果与正则性结果证明任何弱解保持有界。此外,对于非齐次情形,非线性项$g$可以是次临界或临界的,也证明了任何弱解是有界的。证明基于Orclicz和Orlicz-索伯列夫空间中的Moser迭代。

英文摘要:

It is establish regularity results for weak solutions of quasilinear elliptic problems driven by the well known $Φ$-Laplacian operator given by \begin{equation*} \left\{\ \begin{array}{cl} \displaystyle-Δ_Φu= g(x,u), & \mbox{in}~Ω, u=0, & \mbox{on}~\partial Ω, \end{array} \right. \end{equation*} where $Δ_Φu :=\mbox{div}(ϕ(|\nabla u|)\nabla u)$ and $Ω\subset\mathbb{R}^{N}, N \geq 2,$ is a bounded domain with smooth boundary $\partialΩ$. Our work concerns on nonlinearities $g$ which can be homogeneous or non-homogeneous. For the homogeneous case we consider an existence result together with a regularity result proving that any weak solution remains bounded. Furthermore, for the non-homogeneous case, the nonlinear term $g$ can be subcritical or critical proving also that any weak solution is bounded. The proofs are based on Moser's iteration in Orclicz and Orlicz-Sobolev spaces.

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