Spivak normal fibration (Ex)
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In the following exercises be a connected Poincaré complex of formal dimension .
Exercise 0.1. Let be a spherical fibration with homotopy fibre . Show that is homotopy equivalent to a Poincaré complex of formal dimension .
Here is an interesting problem we now confront
Problem 0.2. Determine the Spivak normal fibration of above in terms of and the Spivak normal fibration of .
Here are some hints for this problem: Tangent bundles of bundles (Ex), [Wall1966a], [Chazin1975]