Dihedral Group

A Group of symmetries for an $n$-sided Regular Polygon, denoted $D_n$. The Order of $D_n$ is $2n$.

See also Finite Group D3, Finite Group D4

References

Arfken, G. ``Dihedral Groups, $D_n$.'' Mathematical Methods for Physicists, 3rd ed. Orlando, FL: Academic Press, p. 248, 1985.

Lomont, J. S. ``Dihedral Groups.'' §3.10.B in Applications of Finite Groups. New York: Dover, pp. 78-80, 1987.