On Wednesday, March 2, 2016 at 9:36:20 AM UTC, luisfe wrote:
>
> Looks like a Singular error, the first Hilbert series and second Hilbert
> series returned are not consistent:
>
> indeed.
> {{{
> sage: gb = I.groebner_basis()
> sage: h1=hilb(gb,1)
> // ** _ is no standard basis
> sage: h2=hilb(gb,2)
> // ** _ is no standard basis
> sage: Zt=ZZ['t']
> sage: f1=Zt(list(h1));f1.degree()
> 33
> sage: f2=Zt(list(h2));f2.degree()
> 3
> sage: f1-(1-t)**30*f2
> 4294967296*t^22 - 4294967296*t^21 + 4294967296*t^20 - 4294967296*t^19 +
> 4294967296*t^18
> }}}
>
>
>
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