Namespaces
Variants
Actions

Retraction

From Encyclopedia of Mathematics
Revision as of 16:56, 7 February 2011 by 127.0.0.1 (talk) (Importing text file)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

A continuous mapping of a topological space into a subspace which is the identity on , i.e. is such that for all .


Comments

Cf. Retract of a topological space for more information and references.

How to Cite This Entry:
Retraction. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Retraction&oldid=32408
This article was adapted from an original article by M.I. Voitsekhovskii (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article