Timeline for Subgroups of direct sum of a Prufer group
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Sep 16, 2012 at 13:54 | comment | added | Fred.Fred | Thank you for a quick answer and apologies for not very MO question, I was being silly... | |
| Sep 16, 2012 at 13:45 | comment | added | Emil Jeřábek | Every abelian group can be embedded into its injective envelope, which is a $p$-group if the original group is. Then the envelope is a direct sum of Prüfer $p$-groups by the structure theorem for divisible groups. | |
| Sep 16, 2012 at 13:31 | history | asked | Fred.Fred | CC BY-SA 3.0 |