Timeline for Exact sequences of permutational representations?
Current License: CC BY-SA 2.5
2 events
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| Dec 4, 2009 at 23:58 | comment | added | Leonid Positselski | Thank you, this is a helpful reference. But aren't all short exact sequences of permutational representations obtained in this way contractible, perhaps? | |
| Dec 4, 2009 at 23:19 | history | answered | Mariano Suárez-Álvarez | CC BY-SA 2.5 |