Timeline for Reference for representations of quaternion group
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Oct 17, 2012 at 5:05 | comment | added | Mariano Suárez-Álvarez | The algebra $\mathbb RQ_8$ is semisimple. Since there are $|Q_8/Q_8'|=4$ modules of degree $1$ and the tautological representation on $\mathbb H$ is irreducible and has $\mathbb H$ as its endomorphism ring, as one can see at once, the wedderburn factorization must be $\mathbb R\times\mathbb R\times\mathbb R\times\mathbb R\times\times\mathbb H$, for there is no room for anything else. | |
| Oct 17, 2012 at 4:33 | history | edited | darij grinberg | CC BY-SA 3.0 |
added 55 characters in body
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| Oct 17, 2012 at 4:25 | history | answered | darij grinberg | CC BY-SA 3.0 |