Re: compute the order of orbit



Li Yi top-posted:

> Does anyone have a good idea?

Yes, many of us know how to do it.

> Li Yi wrote:
>> Determine the order of the conjugacy class of
>> [1 0]
>> [0 2]
>> in GL_2(Z_5).

Can you determine the order of the centralizer of this matrix
in GL_2(Z_5)?

--
Robin Chapman, www.maths.ex.ac.uk/~rjc/rjc.html
"Elegance is an algorithm"
Iain M. Banks, _The Algebraist_
.



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