On the extensions of \(\widehat{\mathcal G}^{(\lambda)}\) by \(\widehat{\mathbf G}_a\) over a \({\mathbb{Z}}_{(p)}\)-algebra.

DOI10.3836/tjm/1244208940zbMath1051.14054OpenAlexW2088822799MaRDI QIDQ696215

Mitsuaki Yato

Publication date: 2002

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

Full work available at URL: https://doi.org/10.3836/tjm/1244208940

zbMATH Keywords

formal group schemesgroup scheme extensions

Mathematics Subject Classification ID

(Co)homology of rings and associative algebras (e.g., Hochschild, cyclic, dihedral, etc.) (16E40) Formal groups, (p)-divisible groups (14L05) Group schemes (14L15)

Cites Work

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• Sur les groupes de Lie formels à un paramètre
• On a Case of Extensions of Group Schemes
• A note on extensions of algebraic and formal groups. IV: Kummer-Artin-Schreier-Witt theory of degree \(p^2\)