bn:01399627n
Noun Concept
Categories: Topology
EN
retraction  retract
EN
In topology, a branch of mathematics, a retraction is a continuous mapping from a topological space into a subspace that preserves the position of all points in that subspace. Wikipedia
English:
topology
Definitions
Sources
EN
In topology, a branch of mathematics, a retraction is a continuous mapping from a topological space into a subspace that preserves the position of all points in that subspace. Wikipedia