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Results tagged with homological-algebra
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user 15999
(Co)chain complexes, abelian Categories, (pre)sheaves, (co)homology in various (possibly highly generalized) settings, spectra, derived functors, resolutions, spectral sequences, homotopy categories. Chain complexes in an abelian category form the heart of homological algebra.
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Torsion free quasi-coherent sheaves
Let $R$ be an integral domain and $M$ be a torsion free injective module. Then $M$ is of the form $\oplus_{I}K$ (for some index set $I$), where $K$ is the quotient field of $R$.
Now let $\cal F$ be a …
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