NECESSARY CONDITIONS FOR WEIGHTED POINTWISE HARDY INEQUALITIES

被引:0
|
作者
Lehrback, Juha [1 ]
机构
[1] Univ Jyvaskyla, Dept Math & Stat, FI-40014 Jyvaskyla, Finland
基金
芬兰科学院;
关键词
Pointwise Hardy inequality; maximal function; Hausdorff content; Hausdorff dimension; Minkowski dimension;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We establish necessary conditions for domains Omega subset of R(n) which admit, the pointwise (p, beta)-Hardy inequality vertical bar u(x)vertical bar <= Cd(Omega)(x)(1-beta/p)M(2d Omega(x),q)(vertical bar del u parallel to d(Omega)(beta/p))(x), u is an element of C(0)(infinity)(Omega), where 1 < q < p, d(Omega)(x) = dist(x,partial derivative Omega), and M(R,q) is a maximal operator. In particular, the complement of such a domain must have. even locally, Hausdorff dimension strictly greater than n - p + beta.
引用
收藏
页码:437 / 446
页数:10
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