Modules with reducible complexity
Petter Andreas Bergh

TL;DR
This paper introduces and investigates modules with reducible complexity over commutative Noetherian local rings, expanding understanding of their properties and implications for homology and cohomology vanishing.
Contribution
It defines the class of modules with reducible complexity, encompassing modules with finite complete intersection dimension, and explores their properties and homological behavior.
Findings
Modules with reducible complexity include all modules of finite complete intersection dimension.
Properties of these modules are characterized and analyzed.
Results are provided on the vanishing of homology and cohomology for these modules.
Abstract
For a commutative Noetherian local ring we define and study the class of modules having reducible complexity, a class containing all modules of finite complete intersection dimension. Various properties of this class of modules are given, together with results on the vanishing of homology and cohomology.
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Taxonomy
TopicsCommutative Algebra and Its Applications · Algebraic structures and combinatorial models · Rings, Modules, and Algebras
