#14117: Jordan normal form not computed for nilpotent matrix over rational
function
field / polynomials cannot be factored over rational function field
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Reporter: darij |
Owner: AlexGhitza
Type: defect |
Status: needs_work
Priority: major |
Milestone: sage-5.10
Component: algebra |
Resolution:
Keywords: polynomials, factorization, jordan normal form | Work
issues:
Report Upstream: N/A |
Reviewers: Luis Felipe Tabera Alonso
Authors: Darij Grinberg | Merged
in:
Dependencies: |
Stopgaps:
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Comment (by darij):
Good point about the error raising! I'll do it later today, when I have
time. I am going to add a check variable that defaults to True so that the
checking is only done when it is True, though; otherwise the speed
advantage of this might be significantly diminished. (Checking is best
done by just comparing the characteristic polynomial to the product of
(X-eigenvalue)^multiplicity, or is there a better way?)
I didn't know that blank lines should not be indented! This makes my life
easier, since I actually thought they *should* be indented...
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14117#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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