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Results tagged with gn.general-topology
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user 100976
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
5
votes
Accepted
Hausdorff measure of intersection of a ball and a set in $\mathbb {R} ^ n$
Let me state and prove the following:
Proposition. Let $E \subset \mathbb R^n$ be a set of finite perimeter. For $\mathcal L^1$-a.e. $\rho>0$ the following equality holds:
$$
P(E \cap B_{\rho}) …
- 980