I reading a great book called Symmetry by Roy McWeeny. For those that love Dover Books this one's a gem.(adsbygoogle = window.adsbygoogle || []).push({});

Anyway, I have a question.

How do you partiton a particular group into distinct classes?

The author was discussing the symmetry group C3v the rotation, and reflection of a triangle.

The author was able to partition this group by using its multiplication table. The classes are {E}, {C3,-C3} and {r1,r2,r3}.

Where E is identity, C3,-C3 are positive and negative rotations, r1,r2,r3 are the reflections.

How did he get this answer?

I hope my ? is clearly stated.

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# Partition of Symmetry Group.

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