30.7 Magma Homomorphisms

  • IsMagmaHomomorphism( mapp ) P

    A MagmaHomomorphism is a total single valued mapping which respects multiplication.

  • MagmaHomomorphismByFunctionNC( G, H, fn ) F

    Creates the homomorphism from G to H without checking that fn is a homomorphism.

  • NaturalHomomorphismByGenerators( f, s ) O

    returns a mapping from the magma f with n generators to the magma s with n generators, which maps the ith generator of f to the ith generator of s.

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    GAP 4 manual
    February 2000