Outermorphism
Unital algebra homomorphism of exterior algebras / From Wikipedia, the free encyclopedia
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This article is about outermorphisms of geometric algebra. For the concept in group theory, see outer automorphism group.
In geometric algebra, the outermorphism of a linear function between vector spaces is a natural extension of the map to arbitrary multivectors.[1] It is the unique unital algebra homomorphism of exterior algebras whose restriction to the vector spaces is the original function.[lower-alpha 1]