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D.6.16.2 KSconvert
Procedure from library kskernel.lib (see kskernel_lib).
- Usage:
- KSconvert(matrix M);
M is a matrix of coefficients of the generators of
the kernel of Kodaira-Spencer map in variables T(i)
from the basering. To be called after the procedure
KSker(p,q)
- Return:
- nothing; exports ring KSring2 and matrix KSkernel2 within it,
such that KSring2 resp. KSkernel2 are in variables
T(w) with weights -w. These weights are computed
in the procedure KSker(p,q)
Example:
| | LIB "kskernel.lib";
int p=6;
int q=7;
KSker(p,q);
setring Kskernel::KSring;
KSconvert(KSkernel);
==> // ** `KSring2` is already global
setring Kskernel::KSring2;
print(KSkernel2);
==> 0, 0, 0, 0, 0, 2*T(2),
==> 0, 0, 0, 0, 0, 3*T(3),
==> 0, 0, 0, 0, 0, 4*T(4),
==> 0, 0, 0, 2*T(2), 3*T(3), 9*T(9),
==> 0, 0, 0, 3*T(3), KSkernel2[5,5],10*T(10),
==> 2*T(2),3*T(3),KSkernel2[6,3],KSkernel2[6,4],KSkernel2[6,5],16*T(16)
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