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arXiv 1902.04822math.APmath.FA
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双权变指数索伯列夫空间紧嵌入下$p(.)$ -Laplacian方程弱解的存在性

Existence of Weak Solutions for $p(.)$-Laplacian Equation via Compact Embeddings of the Double Weighted Variable Exponent Sobolev Spaces

Cihan Unal, Ismail Aydin

摘要:

本文定义了关于两个不同权函数的双权变指数索伯列夫空间$W^{1,q(.),p(.)}\left( Ω,\vartheta _{0},\vartheta \right) $。同时,我们也研究了这类空间的基本性质。在紧嵌入条件下,讨论了$p(.)$ -Laplacian方程\begin{equation*} \left\{ \begin{array}{cc} -\text{div}\left( \vartheta (x)\left\vert \nabla f\right\vert ^{p(x)-2}\nabla f\right) =\vartheta _{0}(x)\left\vert f\right\vert ^{q(x)-2}f & x\in Ω\\ f=0 & x\in \partial Ω\end{array} \right. \end{equation*}的加权狄利克雷问题在双加权变指数索伯列夫空间中的弱解的存在性.

英文摘要:

In this study, we define double weighted variable exponent Sobolev spaces $W^{1,q(.),p(.)}\left( Ω,\vartheta _{0},\vartheta \right) $ with respect to two different weight functions. Also, we investigate the basic properties of this spaces. Moreover, we discuss the existence of weak solutions for weighted Dirichlet problem of $p(.)$-Laplacian equation \begin{equation*} \left\{ \begin{array}{cc} -\text{div}\left( \vartheta (x)\left\vert \nabla f\right\vert ^{p(x)-2}\nabla f\right) =\vartheta _{0}(x)\left\vert f\right\vert ^{q(x)-2}f & x\in Ω\\ f=0 & x\in \partial Ω\end{array} \right. \end{equation*} under some conditions of compact embedding involving the double weighted variable exponent Sobolev spaces.

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