In abstract algebra, an associative algebra
is called finite if it is finitely generated as an
-algebra can be thought as a homomorphism of rings
is called a finite morphism if
[1] Being a finite algebra is a stronger condition than being an algebra of finite type.
This concept is closely related to that of finite morphism in algebraic geometry; in the simplest case of affine varieties, given two affine varieties
and a dominant regular map
, the induced homomorphism of
-algebra: The generalisation to schemes can be found in the article on finite morphisms.
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