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for questions about fiber bundles, including structure groups, principal bundles, and spaces of sections.

3 votes

Homomorphisms of Topological Groups which are Automatically Fiber Bundles?

The following statement follows from results of Palais (see theorem 2.3.3 in "On the existence of slices for actions of non-compact Lie groups"). When $G$ is a Lie group, any principal $G$-bundle (in …
Ricardo Andrade's user avatar
4 votes

Homotopy Equivalences and Induced Correspondences between Fibre Bundles

Here is a quick argument which proves homotopy equivalence directly. First, the pullback of a homotopy equivalence along a Hurewicz fibration is again a homotopy equivalence. Further, by the well-know …
Ricardo Andrade's user avatar
8 votes

Serre Spectral Sequence of Representations

Personal comment: I feel that the two previous answers may be together creating some confusion on the subject of the question. I wish to address that with my answer, which would be more suited as a co …
Ricardo Andrade's user avatar