A note on extensions of algebraic and formal groups, IVKummer-Artin-Schreier-Witt theory of degree p^2

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概要

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• We establish a formula for homomorphisms and extensions of group schemes and formal groups, related to deformations of the multiplicative group to the additive group. As an application, we give an explicit description of the theory unifying the Kummer and Artin-Schreier-Witt theories of degree $p^2$.

• 東北大学の論文

著者

• Sekiguchi Tsutomu

  Depatrment Of Mathematics Chuo University

• Suwa Noriyuki

  Department ofMathematics, ChuoUniversity

• Suwa Noriyuki

  Department Of Mathematics Chuo University

• Suwa Noriyuki

  Department Ofmathematics Chuouniversity

関連論文

• A note on extensions of algebraic and formal groups, IVKummer-Artin-Schreier-Witt theory of degree p^2
• A note on extensions of algebraic and formal groups, III
• A note on extensions of algebraic and formal groups, V
• Hodge-Witt cohomology of complete intersections
• Twisted Kummer and Kummer-Artin-Schreier theories

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