Laguna, V. F. and Rodríguez Sanjurjo, José Manuel
(1984)
*Internal fundamental sequences and approximative retracts.*
Topology and its Applications, 17
(2).
pp. 189-197.
ISSN 0166-8641

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Official URL: http://www.sciencedirect.com/science/article/pii/0166864184900415

## Abstract

We introduce the notion of internal fundamental sequence and prove that any shape morphism from an arbitrary compactum X to an internally movable compactum Y is induced by an internal fundamental sequence. We use this special kind of fundamental sequences to give characterizations and some properties of AANRc-sets and AANR,-sets. The paper ends with a section devoted to internal FANR’s.

Item Type: | Article |
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Uncontrolled Keywords: | Shape theory |

Subjects: | Sciences > Mathematics > Geometry Sciences > Mathematics > Topology |

ID Code: | 17179 |

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Deposited On: | 22 Nov 2012 12:38 |

Last Modified: | 07 Feb 2014 09:43 |

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