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Structure Morphism


The structure morphism of a scheme X over a base scheme S is the specified morphism X->S that makes X an S-scheme. For a variety over a field K, the base is Spec(K).

For example, a scheme over its base is proper or smooth when its structure morphism is a proper morphism or smooth morphism, respectively.


See also

Morphism, Proper Morphism, Scheme, Smooth Morphism

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References

Hartshorne, R. Algebraic Geometry. New York: Springer-Verlag, 1977.

Cite this as:

Weisstein, Eric W. "Structure Morphism." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/StructureMorphism.html

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