On the description of \(\mathbb Z/p^2\mathbb Z\)-torsors by the Kummer-Artin-Schreier-Witt theory

DOI10.3836/tjm/1244208687zbMath1085.14038OpenAlexW2051140576MaRDI QIDQ1429189

Kazuyoshi Tsuchiya

Publication date: 18 May 2004

Published in: Tokyo Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.3836/tjm/1244208687

zbMATH Keywords

group schemestorsorsArtin-Schreier Witt TheoryKummer Theory

Mathematics Subject Classification ID

Étale and other Grothendieck topologies and (co)homologies (14F20) Group schemes (14L15)

Cites Work

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• A unified Kummer-Artin-Schreier sequence
• One-dimensional affine group schemes
• A case of extensions of group schemes over a discrete valuation ring
• Kummer-Artin-Schreier theory and applications
• Local cohomology. A seminar given by A. Grothendieck, Harvard University, Fall 1961. Notes by R. Hartshorne
• Faisceaux amples sur les schémas en groupes et les espaces homogènes
• On the deformation of Artin-Schreier to Kummer
• A note on extensions of algebraic and formal groups. IV: Kummer-Artin-Schreier-Witt theory of degree \(p^2\)

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