On retracting properties and covering homotopy theorem for S-maps into Sχ-cofibrations and Sχ-fibrations

In this paper we generalize the retracting property in homotopy theory for topological semigroups by introducing the notions of deformation S-retraction with its weaker forms and ES-homotopy extension property. Furthermore, the covering homotopy theorems for S-maps into Sχ-fibrations and Sχ-cofibrat...

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Bibliographic Details
Main Authors: Amin Saif, Adem Kılıçman
Format: Article
Language:English
Published: SpringerOpen 2016-10-01
Series:Journal of the Egyptian Mathematical Society
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1110256X16300050

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