#17530: AssertionError in relativize()
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Reporter: jdemeyer | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.5
Component: number fields | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: #12005 | Stopgaps:
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Comment (by fwclarke):
The problem is that in the code for
`sage.rings.number_field.number_field.NumberField_absolute.relativize` the
lines
{{{
L = alpha.domain()
alpha = alpha(L.gen()) # relativize over phi's domain
}}}
take no account of the possibility that `L` could be a ''relative'' number
field. Expanding this to read
{{{
L = alpha.domain()
if L.is_relative():
L = L.absolute_field('a')
alpha = alpha.abs_hom()
alpha = alpha(L.gen()) # relativize over phi's domain
}}}
seems to solve the problem.
--
Ticket URL: <http://trac.sagemath.org/ticket/17530#comment:2>
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