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  • The fibre of a pinch map in a model category 

    Hardie, Keith A.; Witbooi, Peter J. (Springer Verlag, 2013)
    In the category of pointed topological spaces, let F be the homotopy fibre of the pinching map X ∪ CA → X ∪ CA/ X from the mapping cone on a cofibration A → X onto the suspension of A. Gray (Proc Lond Math Soc (3) ...