#6261: [with patch, with review] Add multiplicative order for matrices over
finite
fields
----------------------------+-----------------------------------------------
Reporter: ylchapuy | Owner: was
Type: enhancement | Status: new
Priority: minor | Milestone: sage-4.0.2
Component: linear algebra | Keywords:
Reviewer: | Author:
Merged: |
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Comment(by cremona):
This looks good to me. One question: in the line
{{{
ppart = p**Integer(a).exact_log(p)
}}}
do you really mean ppart to be the largest power of p which is <= a,
rather than the pargest power which divides a?
If so, please change this to "positive review".
Remark: I have a Magma implementation of an algorithm to determine when a
polynomial over ZZ is cyclotomic (algorithm of Smyth and Beukers). That
could be used to extend this function to matrices over ZZ, at least.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6261#comment:2>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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