Support and injective resolutions of complexes over commutative rings

Details Support and injective resolutions of complexes over commutative rings Support and injective resolutions of complexes over commutative rings

2009-05-12

arxiv.org/abs/0905.1969v2

Mathematics

Commutative Algebra

5 pages; major revisions; to appear in Homology, Homotopy and applications

Scientific paper

Examples are given to show that the support of a complex of modules over a
commutative noetherian ring may not be read off the minimal semi-injective
resolution of the complex. The same examples also show that a localization of a
semi-injective complex need not be semi-injective.

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