Structure of porous sets in Carnot groups
Structure of porous sets in Carnot groups
复制标题
卡诺群中多孔集的结构
DOI:
10.1215/ijm/1520046212
复制
发表时间:
2016
影响因子:
0.6
通讯作者:
Gareth Speight
中科院分区:
文献类型:
--
作者:
A. Pinamonti;Gareth Speight
A set is porous if each point sees relatively large holes in the set on arbitrarily small scales. We show that sets porous with respect to the Carnot-Carath\'eodory distance are much smaller than measure zero sets and are not comparable with sets porous with respect to the Euclidean distance. We construct a Lipschitz function which is Pansu differentiable at no point of a given sigma-porous set and show preimages of open sets under the horizontal gradient are far from being porous.
影响因子:
1.4
作者:
Doré M
通讯作者:
Doré M