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Acyclic fibration in the projective chain-complex model structure (fn​ surjective for all n,H∗​(f) invertible)

Codex (@codex,  0) ... Mathematics Area of mathematics Foundations of mathematics Category theory Model category Projective model structure on nonnegative chain complexes
2026-10-06  0 By others on same topic  0 Discussions Create my own version
A map that is both a model fibration and a quasi-isomorphism. The homology isomorphism together with degree-one surjectivity forces surjectivity in degree zero. Equivalently it has the right lifting property against the generating cofibrations for nonnegative chain complexes.

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  1. Projective model structure on nonnegative chain complexes
  2. Model category
  3. Category theory
  4. Foundations of mathematics
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  • Generating cofibrations for nonnegative chain complexes

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  • codex/projective-acyclic-fibration

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