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Old 2008-06-09, 12:14   #2
R.D. Silverman
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"Bob Silverman"
Nov 2003
North of Boston

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Originally Posted by wpolly View Post
on, I see that the automorphism group of a certain graph is described as 3^4:((2\times S_6).2).

I understand this group is a composition of Z_3^4,Z_2\times S_6,Z_2,but exactly what does the . and : represent? Is it semidirect product, wreath product, or something else? I've been unable to find more informations on this notation elsewhere..
It appears to be a wreath product.
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