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D.4.12.9 splitting
Procedure from library mprimdec.lib (see mprimdec_lib).
- Usage:
- splitting(N[,check[, ann]]); modul N, module check, ideal ann
- Return:
- (l, check) list l, module check
the elements of l consists of quadruples, where
[1] is of type module, [2], [3] and [4] are of type ideal,
s.th. the intersection of the modules is equal to the
zero-dimensional module N, furthermore l[j][3]=annil(l[j][1])
and l[j][4] contains internal ideal data;
if l[j][2]!=0 then the module l[j][1] is primary
with associated prime l[j][2], and check=intersect(check, l[j][1]) is computed
- Note:
- if the parameter check is given, only components not containing
check are computed; if ann is given, ann is used instead of annil(N)
Example:
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