What is the center of ?
It seems to me that when n is odd the center is e, and when n is even there are some rotations included.
Any help is great.
Thanks for taking the time to answer my question. I just have a question on the notation that you used, what is ? does this represent a "flip" or a rotation. Also how would I begin to prove that this is abelian to every element in where n is even? Should i use a multiplication table?