#6113: segfault in division_points and factoring torsion_polynomial
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Reporter: ncalexan | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.1
Component: number theory | Keywords: segfault division points torsion
polynomial
Reviewer: | Author:
Merged: |
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Comment(by stankewicz):
Replying to [comment:1 cremona]:
> Nick, do you know what the roots function is actually doing in this case
(univariate poly over a number field)? I think it is calling factor(),
but NTL has no support for polynomials over number fields so I thought it
must be calling pari after that.
I recently ran into a similar problem trying to factor over the field
generated by the hilbert class polynomial over QQ. For small degree (< 50
or so) it's okay but for larger degree polynomials it gives a segmentation
fault with PARI. If there's a way I can help here and get a patch up for
this I want to know about it!
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6113#comment:2>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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