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D.15.2.1 makeDivisor

Procedure from library divisors.lib (see divisors_lib).

Usage:
makeDivisor(I ,J); I = ideal, J = ideal.

Assume:
I and J are ideals in a qring Q of a smooth irreducible variety X such that any ideal in Q satisfies the S2 condition.

Return:
a divisor on X

Theory:
The procedure will eliminate all components which are not of codimension 1. The S2 condition requires that every proper nonzero principal ideal has pure codimension 1.

Example:
 


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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.