Dear Hossein Movasati,
Quote:
Dear all
I do not get answer form the following simple commands.
int d=3;
ring r=0,(x(1..5), x(0)), lp;
poly g=x(1)^(d+1)+x(2)^(d+1)+x(3)^(d+1)+x(4)^(d+1)+x(5)^(d+1);
poly f=g-(x(1)+x(2)+x(3)+x(4)+x(5))*x(0)^d-x(0)^(d+1);
ideal V=kbase(groebner(jacob(f)));
V;
I have waited for more than one day but no answer.
First of all, the K-dimension of groebner(jacob(f)) is 729 (use the command "vdim"). At our PCs it has been computed in several seconds.
What kind of PC do you have? Which version of Singular do you use
(execute "Singular -v")?
In general, for non-trivial examples, we recommend to split nested commands into a sequence:
Code:
poly f=g-(x(1)+x(2)+x(3)+x(4)+x(5))*x(0)^d-x(0)^(d+1);
option(prot); // to see what's going on
ideal I=groebner(jacob(f));
ideal V=kbase(I);
With best regards, [/quote]
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