User:Tomruen/Root space diagram
From Wikipedia, the free encyclopedia
In mathematics, a root space diagram is a geometric diagram showing the root system vectors in a Euclidean space satisfying certain geometrical properties.
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B2 and C2, identical by a 45 degree rotation, each with 4 short roots, and 4 long ones. | |
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A2, with 6 roots. | G2, with 6 short roots and 6 long roots. |
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/14/E8subgroups2.svg/320px-E8subgroups2.svg.png)