Timeline for How is $|J_k u(x)|$ (in the coarea formula) defined when $Du$ does not have full rank?
Current License: CC BY-SA 3.0
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| Apr 21, 2020 at 8:04 | 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 23, 2019 at 7:03 | 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 23, 2019 at 6:59 | answer | added | Behnam Esmayli | timeline score: 1 | |
| Apr 13, 2017 at 12:19 | history | edited | CommunityBot |
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| Feb 16, 2017 at 14:18 | comment | added | Steven Gubkin | No. If I am interpreting your formula correctly, then both sides of the integral would be zero if this jacobian always had zero determinant. This makes sense: it says that the area of a curve is zero for instance. | |
| Feb 16, 2017 at 14:15 | comment | added | JSCB | @ Steven Gubkin: so you mean the coarea formula fail in this case? | |
| Feb 16, 2017 at 14:09 | history | edited | Francesco Polizzi | CC BY-SA 3.0 |
edited title
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| Feb 16, 2017 at 14:09 | comment | added | Steven Gubkin | Is it not just 0? | |
| Feb 16, 2017 at 13:58 | history | edited | Dirk | CC BY-SA 3.0 |
added link to MSE post
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| Feb 16, 2017 at 13:08 | history | asked | JSCB | CC BY-SA 3.0 |