Deformation theory of Cohen-Macaulay approximation
Journal article, Peer reviewed
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Original versionJournal of Algebra. 2021, 568 437-466. 10.1016/j.jalgebra.2020.09.039
In  we established axiomatic parametrised Cohen-Macaulay approximation which in particular was applied to pairs consisting of a finite type flat family of Cohen-Macaulay rings and modules. In this sequel we study the induced maps of deformation functors and deduce properties like smoothness and injectivity under general, mainly cohomological conditions on the module.