Timeline for What can be said about $A$ and $B$ given the exact sequence $0 \to R^p \to A \to R^r \to R^q \to B \to 0$?
Current License: CC BY-SA 3.0
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| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 7, 2016 at 18:07 | history | answered | Vladimir Dotsenko | CC BY-SA 3.0 |