retract
Sign in to saveAlso known as retraction
continuous mapping from a topological space into a subspace that preserves the position of all points in that subspace
Connections
homotopy
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Elsevier
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contractible space
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pathological
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International Standard Book Number
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function
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topology
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digital object identifier
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continuous function
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JSTOR
Organization
topological space
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surjective function
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homeomorphism
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Cambridge University Press
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ball
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if and only if
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convex set
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John Milnor
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constant function
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identity function
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