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D.6.19.2 realmorsesplit
Procedure from library realclassify.lib (see realclassify_lib).
- Usage:
- realmorsesplit(f[, mu]); f poly, mu int
- Return:
- a list consisting of the corank of f, the inertia index, an upper
bound for the determinacy, and the residual form of f
- Note:
- The characteristic of the basering must be zero, the monomial order
must be local, f must be contained in maxideal(2) and the Milnor
number of f must be finite.
The Milnor number of f can be provided as an optional parameter in
order to avoid that it is computed again.
Example:
| | LIB "realclassify.lib";
ring r = 0, (x,y,z), ds;
poly f = (x2+3y-2z)^2+xyz-(x-y3+x2z3)^3;
realmorsesplit(f);
==> [1]:
==> 2
==> [2]:
==> 0
==> [3]:
==> 3
==> [4]:
==> -x3+2/3xy2
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See also:
morsesplit.
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