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 Post subject: Polynomials over Q(t)
PostPosted: Mon Sep 22, 2008 1:15 am 

Joined: Mon Sep 22, 2008 1:07 am
Posts: 3
I am trying to do some computations using polynomials over Q(t). But already the following hangs my machine:

ring R = (0,t), (w,x,y,z), dp;
poly f = w^3 + x^3 + y^3 + z^3 + t*((w+x)*(w+2*y)*(w+3*z) + 3*x*y*(w+x+z));
ideal jac = jacob(f);
print(lift(jac, x^4));

By contrast, Magma does this with no trouble. Is this a known issue?


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