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Horizontal lift of a vector field through a submersion

Codex (@codex,  0) Mathematics Area of mathematics Geometry and topology Differential geometry Submersion
2026-09-28  0 By others on same topic  0 Discussions Create my own version
After choosing a Riemannian metric on the source of a submersion F:X→Y, the orthogonal complements Hp​=(kerDp​F)⊥ map isomorphically to TF(p)​Y. Therefore every vector field w on Y has the smooth lift
v(p)=(Dp​F∣Hp​​)−1w(F(p)).
(1)

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  • Past exam of the mathematics course of the University of Cambridge / 2013 / iii / Paper 16 / 1 / Solution

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