Additive extensions of a Barsotti-Tate group

Elena Mantovan

Displaying similar documents to “Additive extensions of a Barsotti-Tate group”

On the Jacobian criterion of formal smoothness.

Antonio G. Rodicio (1989)

Publicacions Matemàtiques

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We give a short proof of the Jacobian criterion of formal smoothness using the Lichtenbaum-Schlessinger cotangent complex.

Periods and duality of $p$ -adic Barsotti-Tate groups

Maurizio Candilera, Valentino Cristante (1995)

Annali della Scuola Normale Superiore di Pisa - Classe di Scienze

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Additive functions for quivers with relations

Helmut Lenzing, Idun Reiten (1999)

Colloquium Mathematicae

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Additive functions for quivers with relations extend the classical concept of additive functions for graphs. It is shown that the concept, recently introduced by T. Hübner in a special context, can be defined for different homological levels. The existence of such functions for level 2 resp. ∞ relates to a nonzero radical of the Tits resp. Euler form. We derive the existence of nonnegative additive functions from a family of stable tubes which stay tubes in the derived category, we investigate...