Timeline for Question about Ext$^1$ in local commutative algebras
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Sep 21, 2016 at 17:55 | comment | added | Mare | ok, i forgot the assumption non-semisimple of course, but in that case all modules are projective anyway. | |
| Sep 21, 2016 at 17:55 | history | edited | Mare | CC BY-SA 3.0 |
added 17 characters in body
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| Sep 21, 2016 at 17:52 | comment | added | A.G | Maybe Peter was thinking in $Ext_{A^{e}}^{1}(A,A)$? (take $A=K$). | |
| Sep 21, 2016 at 16:19 | comment | added | Mare | I added "nonprojective" to M. Id be very surprised if you have an easy example of a nonprojective module over such algebras with Ext^1 vanishing. | |
| Sep 21, 2016 at 16:18 | history | edited | Mare | CC BY-SA 3.0 |
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| Sep 21, 2016 at 16:17 | comment | added | Pedro | Are you expecting such extension group to be nonvanishing always? Because it isn't. | |
| S Sep 21, 2016 at 11:32 | history | suggested | C.F.G | CC BY-SA 3.0 |
improve formatting
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| Sep 21, 2016 at 11:19 | review | Suggested edits | |||
| S Sep 21, 2016 at 11:32 | |||||
| Sep 21, 2016 at 10:58 | history | asked | Mare | CC BY-SA 3.0 |