#9389: Bug in residue fields (was: sage crashing when computing local_data() for
an EC)
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Reporter: arminstraub | Owner: davidloeffler
Type: defect | Status: new
Priority: major | Milestone:
Component: number fields | Keywords: segfault crash local_data
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by jgaski):
Is someone working on this? Here is a trivial example in 4.5.3:
{{{
sage: K.<a> = QuadraticField(5)
sage: E = EllipticCurve(K,[1,2*a])
sage: E.local_data(K.ideal(2))
}}}
Boom. Similarly:
{{{
sage: K.<a> = QuadraticField(5)
sage: R = PolynomialRing(K.ring_of_integers().residue_field(K.ideal(2)),
'x')
sage: R([1/2*a])
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9389#comment:8>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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