Timeline for Relation of the first Hochschild cohomology and the outer automorphism group
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Oct 12, 2021 at 17:42 | history | became hot network question | |||
| Oct 12, 2021 at 15:43 | comment | added | Mare | @YCor Yes, that is correct. | |
| Oct 12, 2021 at 14:06 | comment | added | YCor | What is an inner automorphism of a ring $R$? Is it the set of $x\mapsto uxu^{-1}$ for $u$ ranging over invertible elements of $R$? | |
| Oct 12, 2021 at 13:44 | history | edited | Mare | CC BY-SA 4.0 |
added 143 characters in body
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| Oct 12, 2021 at 13:39 | answer | added | Stefan Waldmann | timeline score: 5 | |
| Oct 12, 2021 at 13:25 | history | edited | Mare | CC BY-SA 4.0 |
added 43 characters in body
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| Oct 12, 2021 at 12:15 | answer | added | user108998 | timeline score: 4 | |
| Oct 12, 2021 at 11:55 | comment | added | Mare | @YCor The automorphism group of the ring modulo the normal subgroup of inner automorphisms. | |
| Oct 12, 2021 at 11:49 | comment | added | YCor | How is the outer automorphism group of a ring (= associative unital ring?) defined? | |
| Oct 12, 2021 at 9:38 | history | asked | Mare | CC BY-SA 4.0 |