Higher integrabilities and boundednesses for minimizers of weighted anisotropic integral functionals
Higher integrabilities and boundednesses for minimizers of weighted anisotropic integral functionals
复制标题
加权各向异性积分泛函的极小值具有更高的可积性和有界性
DOI:
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发表时间:
2019-04
影响因子:
0.4
通讯作者:
Yan Dong
中科院分区:
文献类型:
--
作者:
Tingfu Feng;Yan Dong
We consider the weighted anisotropic integral functional $$I(u)=\int_{\Omega}f(x,Du(x))dx,$$ where $\Omega\subset R^n$ is a bounded open set, $u:\Omega\subset R^n \rightarrow R $, $f:\Omega \times R^n \rightarrow [0,+\infty) $ is a Carath\'{e}odory function satisfying$$ \sum_{i=1}^{n}v_{i}{|z_{i}|}^{p_{i}}\leq f(x,z)\leq c\left(1+\sum_{i=1}^{n}v_{i}{|z_{i}|}^{q_{i}}\right),$$\\in which $c>0 $ is a constant, $1<p_i<q_i<n$, $i=1,2,\cdots,n$, ${\nu_i}$ is the positive weighted function on $\Omega$ and\\$${\nu _i} \in L_{loc}^1(\Omega ),{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} {\left( {\frac{1}{{{\nu _i}}}} \right)^{{m_i}}} \in {L^1}(\Omega ),{m_i} \ge \frac{1}{{{p_i} - 1}}.$$\\By using the weighted anisotropic Sobolev inequality and the iteration Lemma, it is proven the higher integrability for the minimizer $u$ of $I(u)$ when the boundary datum has the higher integrability. We also obtain the global boundednesses of exponential form and $L^\infty(\Omega)$ for the minimizer, respectively. Furthermore, the similar results for the minimizer of the obstacle problem to $I(u)$ are given.
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DOI:
--
发表时间:
2015
期刊:
--
影响因子:
--
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通讯作者:
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影响因子:
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影响因子:
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