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D.15.14.28 factorgroup
Procedure from library multigrading.lib (see multigrading_lib).
- Usage:
- factorgroup(G,H); list G, list H
- Purpose:
- returns a representation of the factor group G mod H using the first isomorphism thm
- Returns:
- list
Example:
| | LIB "multigrading.lib";
intmat S1[2][2] =
1,0,
0,1;
intmat L1[2][1] =
2,
0;
intmat S2[2][1] =
1,
0;
intmat L2[2][1] =
2,
0;
list G = createGroup(S1,L1);
list H = createGroup(S2,L2);
list N = factorgroup(G,H);
print(N);
==> [1]:
==> 1,0,
==> 0,1
==> [2]:
==> 2,1,
==> 0,0
kill G,H,N,S1,L1,S2,L2;
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