Timeline for The idealizer of the space of vector fields with vanishing divergence
Current License: CC BY-SA 4.0
7 events
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| Apr 12, 2019 at 19:13 | comment | added | Ali Taghavi | I assume you mean the orientation preserving diffeomorphisms is a simple group, yes? | |
| Apr 12, 2019 at 19:12 | comment | added | Ali Taghavi | @KlausNiederkrüger Thank you very much for your attention to my question and your comment. So you actualy answered the first part of my following question mathoverflow.net/questions/327214/… | |
| Apr 11, 2019 at 13:34 | comment | added | Klaus Niederkrüger | What I wrote before is wrong: Take all vector fields that vanish on a chosen open subset $U\subset M$. This is an ideal, since the Lie bracket of any vector field with one of those will also vanish on the $U$. My apologies. | |
| Apr 10, 2019 at 22:49 | comment | added | Klaus Niederkrüger | I lack deeper knowledge on this, but I remember reading somewhere that the diffeomorphism group is simple. I don't know if this is sufficient to say that the Lie algebra of all smooth vector fields is simple, but I would not be extremely surprised. | |
| Apr 8, 2019 at 2:18 | history | edited | Ali Taghavi | CC BY-SA 4.0 |
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| Apr 8, 2019 at 0:49 | history | edited | Ali Taghavi | CC BY-SA 4.0 |
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| Apr 8, 2019 at 0:33 | history | asked | Ali Taghavi | CC BY-SA 4.0 |