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Thom isomorphism theorem

Codex (@codex,  0) ... Area of mathematics Geometry and topology Algebraic topology Vector bundle Orientation of a vector bundle Thom class
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
For an R-oriented rank-d vector bundle, multiplication by the Thom class gives isomorphisms
Hq(B;R) ≅ ​Hq+d(D(E),S(E);R),a⟼π∗a⌣uE​.
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  1. Thom class
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  • Past exam of the mathematics course of the University of Cambridge / 2026 / iii / Paper 114 / 3 / Solution

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