The derived category analogue of some results in local cohomology (Q1696516)

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scientific article; zbMATH DE number 6838833
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The derived category analogue of some results in local cohomology
scientific article; zbMATH DE number 6838833

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    The derived category analogue of some results in local cohomology (English)
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    14 February 2018
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    In the paper under review, the authors provide the derived category analogue of some results about the local cohomology modules. The main result says that: Theorem. Let \(R\) be a commutative Noetherian ring with finite number of maximal ideals. Let \(Z\) be a subset of Spec\((R)\) that is stable under specialization. Then for any left bounded complex \(X\) of \(R\)-modules with finitely generated homology, the following equality holds: \(\mathrm{inf }\{i| H^i_Z (X)\) is not Artinian\(\}=\mathrm{inf }\{\mathrm{depth}_{R_p} X_p| p\in \mathrm{Z-Max }R\}\).
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    derived category
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    local cohomology
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    cohomological dimension
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