科研之友
微信
新浪微博
Facebook
分享链接
摘要
We study how the Hausdorff measure is distributed in nonsymmetric narrow cones in R-n. As an application, we find an upper bound close to n - k for the Hausdorff dimension of sets with large k-porosity. With k-porous sets we mean sets which have holes in k different directions on every small scale.
- 出版日期2011-3
