Timeline for "Thickening" an arc on a 2-manifold
Current License: CC BY-SA 4.0
10 events
when toggle format | what | by | license | comment | |
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Aug 30, 2022 at 9:10 | history | edited | Sam Nead |
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Aug 30, 2022 at 5:33 | history | became hot network question | |||
Aug 30, 2022 at 1:27 | history | edited | Sam Nead |
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Aug 29, 2022 at 23:53 | comment | added | Sam Nead | This is a delicate question if you want a real proof, and not "just" some handwaving about "oh, this follows from the Schoenflies theorem". | |
Aug 29, 2022 at 23:28 | answer | added | Sam Nead | timeline score: 4 | |
Aug 29, 2022 at 21:50 | comment | added | Sam Nead | Also, taking a $\delta/2$--neighbourhood need not give a two-cell - you need to take the constant small enough to avoid the neighbourhood overlapping itself. | |
Aug 29, 2022 at 21:47 | comment | added | Sam Nead | Are we assuming that the surface comes with a metric? | |
Aug 29, 2022 at 21:46 | comment | added | Leo Moos | What about, say, taking $V_{\delta/2}$, the set of points lying at most a distance $\delta/2$ away from the arc? Here $\delta > 0$ would be the distance between said arc and the preassigned compact set. | |
S Aug 29, 2022 at 21:32 | review | First questions | |||
Aug 30, 2022 at 0:42 | |||||
S Aug 29, 2022 at 21:32 | history | asked | Palina | CC BY-SA 4.0 |