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D.15.13.10 isGroupHomomorphism

Procedure from library multigrading.lib (see multigrading_lib).

Usage:
isGoupHomomorphism(L1,L2,A); L1 and L2 are groups, A is an integer matrix

Purpose:
checks whether A defines a group homomorphism phi: L1 --> L2

Return:
int, 1 if A defines the homomorphism and 0 otherwise

Example:
 


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