Support and injective resolutions of complexes over commutative rings

Xiao-Wu Chen and Srikanth B. Iyengar

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.

Homology, Homotopy and Applications, Vol. 12 (2010), No. 1, pp.39-44.

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