Fibrations that are cofibrations
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- by Juan M. Alonso PDF
- Proc. Amer. Math. Soc. 87 (1983), 749-753 Request permission
Abstract:
We give necessary and sufficient conditions for a homotopy cartesian square to be homotopy cocartesian. Specializing, we obtain a necessary and sufficient condition for a fibration to be a cofibration. We apply the above to localization of spaces and to acyclic maps.References
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Additional Information
- © Copyright 1983 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 87 (1983), 749-753
- MSC: Primary 55P60; Secondary 55P05, 55R05
- DOI: https://doi.org/10.1090/S0002-9939-1983-0687656-3
- MathSciNet review: 687656