#11938: FiniteField_givaro defined by Conway polynomials: conversion of elements
from F_{p^n} to F_{p^m}
---------------------------------------------------------------------------------+
Reporter: dkrenn
| Owner: cpernet
Type: enhancement
| Status: needs_review
Priority: major
| Milestone: sage-5.4
Component: givaro
| Resolution:
Keywords: finite field, givaro, Conway polynomial, conversion, coercion
| Work issues:
Report Upstream: N/A
| Reviewers:
Authors: Daniel Krenn
| Merged in:
Dependencies: #12084
| Stopgaps:
---------------------------------------------------------------------------------+
Description changed by dimpase:
Old description:
> We have
> {{{
> sage: from sage.rings.finite_rings.finite_field_givaro import
> FiniteField_givaro
> sage: F9 = FiniteField_givaro(9)
> sage: F81 = FiniteField_givaro(81)
> sage: F81(F9.gen())
> Traceback (most recent call last):
> ...
> NotImplementedError
> }}}
> so one should implement this. Incidentally I did that, patch follows.
>
> Apply trac_11938_conversion_gf_conway.2.patch
New description:
We have
{{{
sage: from sage.rings.finite_rings.finite_field_givaro import
FiniteField_givaro
sage: F9 = FiniteField_givaro(9)
sage: F81 = FiniteField_givaro(81)
sage: F81(F9.gen())
Traceback (most recent call last):
...
NotImplementedError
}}}
so one should implement this. Incidentally I did that, patch follows.
Apply
[attachment:trac_11938_conversion_gf_conway.2.patch]
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11938#comment:9>
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