section and retraction
Sign in to saveAlso known as left and right inverses, left and right inverse morphisms, section and cosection, coretraction and retraction
two kinds of possible inverses of a morphism in a category
In the Vinony graph
Vinony's link graph records 52 inbound references to section and retraction, and connects out to isomorphism, morphism and cancellation property.
It sits within the topics Category theory and Homological algebra.
Vinony links it to 9 Wikipedia language editions.
Connections
isomorphism
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morphism
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cancellation property
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mathematics
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algebra
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integer
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function
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topology
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digital object identifier
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empty set
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field
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inverse function
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injection
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surjective function
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modular arithmetic
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linear map
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domain of a function
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basis
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category theory
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axiom of choice
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