|
B.2.0.1 find_invo
Procedure from library involution.lib (see involution_lib).
- Usage:
- find_invo();
- Purpose:
- describes a variety of linear involutions on a basering
- Return:
- a ring together with a list of pairs L, where
L[i][1] = Groebner Basis of an i-th associated prime,
L[i][2] = multiplication matrix, reduced wrt L[i][1]
- Note:
- for convenience, the full ideal of relations 'idJ'
and the matrix with indeterminates 'matD' are exported in the output ring.
"
Example:
| LIB "involution.lib";
def a = CreateWeyl(1);
setring a;
def X = find_invo();
setring X;
L;
==> [1]:
==> [1]:
==> _[1]=@_1_1+@_2_2
==> _[2]=@_1_2*@_2_1+@_2_2^2-1
==> [2]:
==> _[1]=-@_2_2
==> _[2]=@_1_2
==> _[3]=@_2_1
==> _[4]=@_2_2
|
|