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Length and Multiplicities in Graded Commutative Algebra

This paper is a review of concepts from graded commutative algebra with specific attention given to length and multiplicity. The author's motivation for this paper comes from the study of equivariant cohomology in algebraic topology where the graded commutative algebra of the module is intimately connected to topological properties of the space (as shown by Quillen). Results (and their proofs) which are often left as exercises, or considered 'folklore' in the commutative algebra community are included in this paper, as are references to relevant applications in topology. As such, this paper is aimed at algebraic topologists and geometers looking for a detailed exposition of length and multiplicity computations in graded commutative algebra.

preprint2020arXivOpen access
Mark Blumstein
math.ATmath.AC
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Mark Blumstein

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