Is there an analogue of the Jordan Curve theorem concerning closed surfaces in general in three-manifolds? - Quora
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Is every hypersurface in $\mathbb{R}^n$ the boundary of an open domain? - Mathematics Stack Exchange
![a) The 2-box V in the complete 2-space Y 2. (b) V 1 is obtained from V... | Download Scientific Diagram a) The 2-box V in the complete 2-space Y 2. (b) V 1 is obtained from V... | Download Scientific Diagram](https://i1.rgstatic.net/publication/279068814_The_Jordan-Brouwer_theorem_for_graphs/links/57c5769508ae424fb2cf74a9/largepreview.png)
a) The 2-box V in the complete 2-space Y 2. (b) V 1 is obtained from V... | Download Scientific Diagram
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