#2329: add interface to Pari's rnfisnorm
-----------------------------------------+----------------------------------
Reporter: craigcitro | Owner: craigcitro
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-4.6.1
Component: number fields | Keywords: editor_craigcitro
Author: Craig Citro, Marco Streng | Upstream: N/A
Reviewer: Nick Alexander | Merged:
Work_issues: bug in Pari 2.4.3 |
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Changes (by mstreng):
* work_issues: bug in Pari 2.3.5 => bug in Pari 2.4.3
Comment:
The bug with non-integral elements in rnfisnorm was reported to pari by
fwclarke, and I wrote a simple workaround for the time it takes a pari-fix
to reach sage.
Turns out there is another problem:
{{{
sage: K.<a> = NumberField(x^2 + x + 1)
sage: Q.<X> = K[]
sage: L.<b> = NumberField(X^3 + a)
sage: K.pari_rnfnorm_data(L)
PariError: incorrect type (11)
}}}
Again caused by something that works fine in pari 2.3.4 and is broken in
pari 2.4.3 (alpha)
{{{
gp > bnf = bnfinit(y^2+y+1);
gp > polrel = Mod(1, y^2 + y + 1)*x^3 + Mod(y, y^2 + y + 1);
gp > rnfisnorminit(bnf, polrel)
*** at top-level: rnfisnorminit(bnf,po
*** ^--------------------
*** rnfisnorminit: incorrect type in RgX_RgXQ_eval.
*** Break loop: type 'break' to go back to GP
}}}
Ideas anyone?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/2329#comment:20>
Sage <http://www.sagemath.org>
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