#13263: matrix() for elements in quotients of polynomial ring broken over
inexact
rings
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Reporter: saraedum | Owner: malb
Type: defect | Status: new
Priority: minor | Milestone: sage-5.3
Component: commutative algebra | Keywords: padic, quotient ring,
inexact ring
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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The following code fails:
{{{
sage: R.<T>=Qp(3,prec=2)[]
sage: S.<Tbar>=R.quo(T^2+1)
sage: S(T^2).matrix()
TypeError: cannot construct an element of Full MatrixSpace of 2 by 2 dense
matrices over 3-adic Field with capped relative precision 2 from [2 + 2*3
+ O(3^2), 0, O(3^2), 0, 2 + 2*3 + O(3^2), 0, O(3^2)]!
sage: S(T^2)
(O(3^2))*Tbar^2 + (2 + 2*3 + O(3^2))
}}}
The term {{{(O(3^2))*Tbar^2}}} should not be present since we modded out
by {{{T^2+1}}}.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13263>
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