Defining the m-th stratum of a closed subset of an n dimensional Euclidean space to consist of those points, where it can be touched by a ball from at least n - m linearly independent directions, we establish that the m-th stratum is second-order rectifiable of dimension m and a Borel set. This was known for convex sets, but is new even for sets of positive reach. The result is based on a sufficient condition of parametric type for second-order rectifiability.
Titolo: | A geometric second-order-rectifiable stratification for closed subsets of Euclidean space | |
Autori: | SANTILLI, MARIO (Corresponding) | |
Data di pubblicazione: | 2019 | |
Rivista: | ||
Handle: | http://hdl.handle.net/11697/176966 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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