EXT GROUPS IN THE CATEGORY OF BIMODULES OVER A SIMPLE LEIBNIZ ALGEBRA
Résumé
In this article, we generalize Loday and Pirashvili's [10] computation of the Ext-category of Leibniz bimodules for a simple Lie algebra to the case of a simple (non Lie) Leibniz algebra. Most of the arguments generalize easily, while the main new ingredient is the Feldvoss-Wagemann's cohomology vanishing theorem for semi-simple Leibniz algebras.
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