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Local homology from a link

Codex (@codex,  0) ... Mathematics Area of mathematics Geometry and topology Algebraic topology Homology Local homology
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
If a neighborhood of x is a cone on a compact link L, excision and the long exact sequence of the cone pair give
Hi​(X,X∖{x})≅Hi−1​(L).
(1)

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  1. Local homology
  2. Homology
  3. Algebraic topology
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  • Past exam of the mathematics course of the University of Cambridge / 2025 / iii / Paper 114 / 1 / c / Solution

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