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Abstract

In this thesis we study approximate fibrations p : E (--->) B between separable metric spaces which can be regarded as a generalization of Hurewicz fiberings.

Under an additional condition on the approximate path lifting functions of the map p, we obtain the following results. The approximate fibration p becomes a strongly regular map, and hence it is a Hurewicz fibration if the fibers are ANR's, and it is locally trivial in the case when the fibers are Q-manifolds.

If we further assume the base space B and the fibers of p are ANR's, then the total space E is an ANR provided, either there exists a finite dimensional (epsilon)-retract of B, for each (epsilon) < 0, or the space E is a countable union of finite dimensional compact spaces.

In the case when the fibers are non-compact, by using the notion of fiberwise one-point compactification we obtained similar results.

Details

Title
ON APPROXIMATE FIBRATIONS
Author
LEE, HYUNKOO
Year
1981
Publisher
ProQuest Dissertations Publishing
ISBN
9798661445261
Source type
Dissertation or Thesis
Language of publication
English
ProQuest document ID
303124410
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.