Re: rnfinit error

[Igor Schein <igor@txc.com>]

On Wed, Aug 24, 2005 at 10:22:09PM +0200, Philippe Elbaz-Vincent wrote:
> I am able to reproduce it on different versions
> 
> Version 2.2.10 (development CHANGES-1.1187)
> amd64 running linux (x86-64/GMP-4.1.3 kernel) 64-bit version

Yes, I see now.  It's fixed in CVS version, so you might want to use
CVS build instead.

Igor

> >On Wed, Aug 24, 2005 at 03:22:32PM -0400, Mak Trifkovic wrote:
> >>I do the following:
> >>
> >>K=bnfinit(a^4 - 3*a^2 + 71);
> >>
> >>L=rnfinit(K,x^5 + Mod(a - 1, a^4 - 3*a^2 + 71)*x^4 + Mod(2/5*a^2 + 2/5,
> >>a^4 - 3*a^2 + 71)*x^3 + Mod(2/5*a^2 - 3/5, a^4 - 3*a^2 + 71)*x^2 +
> >>Mod(1/5*a^3 - 1/5*a^2 - 4/5*a + 19/5, a^4 - 3*a^2 + 71)*x + Mod(-1/5*a^2 +
> >>a - 11/5, a^4 - 3*a^2 + 71))
> >>
> >>and get the error message
> >>
> >>  *** rnfinit: reducible modulus in factornf.
> >>
> >>What's wrong?  (both polynomials are irreducible)