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D.15.13.12 createGradedRingHomomorphism

Procedure from library multigrading.lib (see multigrading_lib).

Usage:
createGradedRingHomomorphism(R, f, A); ring R, ideal f, group homomorphism A

Purpose:
create a multigraded group ring homomorphism defined by a ring map from R to the current ring, given by generators images f and a group homomorphism A between grading groups

Return:
graded ring homorphism

Example:
 


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