Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6899024 | Journal of the Egyptian Mathematical Society | 2016 | 7 Pages |
Abstract
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 SÏ-fibrations and SÏ-cofibrations are introduced and pullbacks for SÏ-fibrations behave properly.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science (General)
Authors
Amin Saif, Adem Kılıçman,