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For questions about or involving fibrations which are maps which satisfy the homotopy lifting property for all spaces.

8 votes
2 answers
258 views

Is the fiberwise suspension of a Serre fibration a Serre fibration?

Let $\pi\colon X \rightarrow Y$ be a Serre fibration. Define $\Sigma_f\pi \colon \Sigma_f X \rightarrow Y$ be the fiberwise unreduced suspension of $\pi$. … Question: Must $\Sigma_f\pi \colon \Sigma_f X \rightarrow Y$ also be a Serre fibration? …
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