Re: rnfinit error

[Mak Trifkovic <mak@math.mcgill.ca>]

\v says

 GP/PARI CALCULATOR Version 2.2.10 (alpha)
                                              i686 running linux (ix86 
kernel) 32-bit version
                                     compiled: Jul  8 2005, gcc-3.3.3 
20040412 (Red Hat Linux 3.3.3-7)
                                             (readline v4.3 enabled, 
extended help available)




On Wed, 24 Aug 2005, Igor Schein wrote:

> 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)
> >
> > Mak
>
> Can you please provide output of \v?  I can't reproduce this problem
> with either 2.1.5 or 2.2.10.
>
> Igor