MathGroup Archive 2009

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Re: representing the dihedral group


What about simplifying the canonical forms even more?

(a*b)^m * a = r^(m+1)*s = s*r^mod(-m-1,n) = (b*a)^k * b for some k,
and also
(b*a)^m = s*r^(m+1)*s = r^mod(-m-1,n) = (a*b)^k for some k


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