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D.5.8.1 deform
Procedure from library sing.lib (see sing_lib).
- Usage:
deform(id); id=ideal or poly
- Return:
matrix, columns are kbase of infinitesimal deformations
Example:
LIB "sing.lib"; ring r = 32003,(x,y,z),ds; ideal i = xy,xz,yz; matrix T = deform(i); print(T); → x,0,0, → 0,0,z, → 0,y,0 print(deform(x3+y5+z2)); → xy3,y3,xy2,y2,xy,y,x,1 |