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A fiber bundle theorem - MaRDI portal

A fiber bundle theorem (Q1201424)

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scientific article; zbMATH DE number 97885
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A fiber bundle theorem
scientific article; zbMATH DE number 97885

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    A fiber bundle theorem (English)
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    17 January 1993
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    The author proves that a surjective submersion \(\pi: M\to B\) from a pseudo-Riemannian manifold \(M\) is a fibre bundle, if its fibres are connected totally geodesic and geodesically complete submanifolds of \(M\). This theorem is ``dual'' to R. Hermann's result (1960) about Riemannian submersions and based on the observation that if the surjective submersion \(\pi: M\to B\) admits an Ehresmann connection (distribution on \(M\) which is complementary to the fibers with whole lifts for every curve in \(B\)), then it is a fibre bundle.
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    totally geodesic submanifold
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    submersion
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    Ehresmann connection
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