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A criterion for cohomological dimension

2005/11/08 by Karen Acquista, Acquista, Karen
Mathematics · #Advanced Algebra and Geometry #Algebraic Geometry and Number Theory #FOS: Mathematics #Homotopy and Cohomology in Algebraic Topology #K-Theory and Homology (math.KT) #Number Theory (math.NT)

paper · pdf · doi:10.48550/arxiv.math/0511211

openalex publication_date 2005/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We give a criterion for the cohomological dimension of a field, involving norm maps on Milnor K-theory; this criterion was originally formulated by Kato. The theorem we prove is a generalization of a theorem in Serre's book on Galois cohomology.

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