#18671: Fix in PolynomialSequence
-------------------------------------+-------------------------------------
Reporter: github/switzel | Owner:
Type: defect | Status: needs_work
Priority: major | Milestone: sage-6.9
Component: algebra | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/github/ticket/18671 | 2ffe928ebeefdca1c48d2be46d596c5ac978c93a
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by vdelecroix):
* status: needs_review => needs_work
* milestone: sage-6.8 => sage-6.9
Old description:
> The code
>
> F = GF(2)
> L.<t> = PowerSeriesRing(F,'t')
> R.<x,y> = PolynomialRing(L,'x,y')
> PolynomialSequence([0], R)
>
> does not work because PolynomialSequence makes an implicit distinction
> between fields of characteristic != 2 and finite fields of characteristic
> 2. The fix allows for infinite fields of characteristic 2 (treating them
> generically together with fields of characteristic != 2).
>
> https://github.com/sagemath/sage/pull/41
New description:
The code
{{{
F = GF(2)
L.<t> = PowerSeriesRing(F,'t')
R.<x,y> = PolynomialRing(L,'x,y')
PolynomialSequence([0], R)
}}}
does not work because PolynomialSequence makes an implicit distinction
between fields of characteristic != 2 and finite fields of characteristic
2. The fix allows for infinite fields of characteristic 2 (treating them
generically together with fields of characteristic != 2).
https://github.com/sagemath/sage/pull/41
--
Comment:
Needs:
- full author name
- a doctest
Vincent
--
Ticket URL: <http://trac.sagemath.org/ticket/18671#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
