Timeline for Hausdorff approximating measures and Borel sets
Current License: CC BY-SA 3.0
22 events
| when toggle format | what | by | license | comment | |
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| Feb 8, 2018 at 18:08 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 9, 2018 at 18:07 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 10, 2017 at 17:33 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Nov 10, 2017 at 17:33 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Oct 11, 2017 at 16:38 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Sep 11, 2017 at 16:35 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Aug 12, 2017 at 15:40 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jul 13, 2017 at 15:08 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jun 13, 2017 at 14:27 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| May 14, 2017 at 13:38 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Apr 14, 2017 at 13:15 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 15, 2017 at 12:57 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Feb 13, 2017 at 12:06 | answer | added | rozu | timeline score: 3 | |
| Jan 23, 2017 at 8:47 | comment | added | Longyearbyen | Thank you. Your example works. If you want to write it as an answer, I ll be glad to accept it and vote it up. | |
| Jan 22, 2017 at 22:44 | comment | added | Pablo Shmerkin | This is sort of cheating, but isn't a (separated) countable union of spheres of radii tending to $0$ a counterexample? There should also be more natural examples. After all, the outer measures $\mathcal{H}_\delta^m$ are highly non-additive. | |
| Jan 22, 2017 at 18:37 | comment | added | Anthony Quas | Sorry - I didn't read your question properly. | |
| Jan 22, 2017 at 18:28 | comment | added | Longyearbyen | But why should this set be Borel? | |
| Jan 22, 2017 at 18:24 | comment | added | Anthony Quas | $\mathcal H^1_\delta$-measurable? | |
| Jan 22, 2017 at 17:45 | comment | added | Longyearbyen | Thank you for your interest in this question. I am not sure to have got your point. When you say "non measurable" what measaure do you think about? | |
| Jan 22, 2017 at 17:11 | comment | added | Anthony Quas | Doesn't a non-measurable one-dimensional subset of the real line, thought of as a subset of $\mathbb R^2$ give an immediate counterexample? | |
| Jan 22, 2017 at 13:35 | history | edited | Longyearbyen | CC BY-SA 3.0 |
added 10 characters in body
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| Jan 22, 2017 at 1:40 | history | asked | Longyearbyen | CC BY-SA 3.0 |