#8972: Inversion and fraction fields for power series rings
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Reporter: SimonKing | Owner: AlexGhitza
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.4.2
Component: algebra | Keywords: power series
ring, fraction field
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: segfault of div of Laurent series |
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Comment(by SimonKing):
Strangely, without the patch, the construction works:
{{{
sage: R.<x> = ZZ[[]]
sage: F = LaurentSeriesRing(FractionField(R.base()),R.variable_names())
sage: 1/F(x)
x^-1
}}}
The patch does this construction as well -- but segfaults. There seems to
be a nasty side effect.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8972#comment:2>
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