Tag
Quasi-isomorphism
2 resources tagged “Quasi-isomorphism” across the knowledge library.
2 items
Guide6 Aug 2026Chain Homotopy and the Comparison TheoremChain homotopy between chain maps, homotopy equivalence, the comparison theorem for projective resolutions, and independence of derived functors from the chosen resolution.4 min readRead MoreGuide6 Aug 2026Derived and Stable CategoriesThe derived category, localisation at quasi-isomorphisms, triangulated structure, derived functors in the modern sense, and the stable module category.4 min readRead More