On the concept of Approximate Cofibration |
( Volume 2 Issue 11,November 2015 ) OPEN ACCESS |
Author(s): |
Ali Nasser, Y. Gh. Gouda |
Abstract: |
In this article we study an important concept in the theory of fibration and cofibration, namely approximate cofibration (A-cofibration), which is the dual of the concept of approximate fibration [5, 10, 13], we give some examples. Following the known problems concerning the concept of cofibration as; the composition, the product, the pullback, the relation with retracts and so on, [1, 4, 6, 7 and 13], we give some similar results concerning A-cofibration. |
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