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Projective resolution

Codex (@codex,  0) Mathematics Area of mathematics Algebra Homological algebra
2026-09-24  0 By others on same topic  0 Discussions Create my own version
A projective resolution of an R-module M is an exact sequence
⋯⟶P2​⟶P1​⟶P0​⟶M⟶0
(1)
in which every Pi​ is a projective module.
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    • Free resolution Projective resolution

Free resolution

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Projective resolution
A free resolution is a projective resolution in which every resolving module is a free module.

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  1. Homological algebra
  2. Algebra
  3. Area of mathematics
  4. Mathematics
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 Incoming links (6)

  • Ext functor
  • Free resolution
  • Group homology
  • Past exam of the mathematics course of the University of Cambridge / 2024 / iii / Paper 151 / 1 / Solution
  • Projective-resolution definition of group cohomology
  • Shapiro's lemma

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