Timeline for How to introduce notions of flat, projective and free modules?
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
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| Jun 22, 2011 at 14:35 | comment | added | David White | This is indeed a very nice motivation of flatness. If you wanted even less homological algebra and your students already believed free and projective modules were interesting then I suppose you could introduce flat modules as direct limits of f.g. free modules. After talking about direct summands of free modules, I can't imagine people would be shocked when you asked about direct limits. | |
| Dec 3, 2010 at 8:15 | comment | added | Emerton | Dear Long, Thanks for the interesting reference! | |
| Nov 27, 2010 at 20:28 | vote | accept | Pete L. Clark | ||
| Nov 19, 2010 at 3:23 | comment | added | Pete L. Clark | @Hailong: you can be there as far as I'm concerned. Please feel free to drop by, especially if you don't mind being handed the chalk. | |
| Nov 19, 2010 at 2:05 | history | answered | Hailong Dao | CC BY-SA 2.5 |