Hi everybody,

in a nutshell I want to compute something like this MAGMA session in Sage:

%magma
P<a,b,c,d> := PolynomialRing(GF(127),4);
I := ideal<P|c^3-b*d^2,b*c-a*d,b^3-a^2*c,a*c^2-b^2*d>;
S<t> := HilbertSeries(I);
S;
L<u> := LaurentSeriesRing(IntegerRing());
L ! S;

The first part is quite easy as I wrapped the appropriate Singular function 
(singular.hilb(I,1)/(1-t^n)). It is the second part that gives me trouble, 
i.e. I need the first n Laurent series terms for the rational function which 
describes the Hilbert series.

Tips?
Martin

-- 
name: Martin Albrecht
_pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
_www: http://www.informatik.uni-bremen.de/~malb
_jab: [EMAIL PROTECTED]


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