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arXiv · 1407.3941

Groupes d'extensions et foncteurs polynomiaux

Aurélien Djament
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Abstract

Généralisant un article de Pirashvili, nous caractérisons les petites catégories additives A telles que l'inclusion dans la catégorie des foncteurs de A vers les groupes abéliens de la sous-catégorie pleine des foncteurs analytiques induise un isomorphisme entre groupes d'extensions. -- Extending an article of Pirashvili, we characterize small additive categories A such that the inclusion in the category of functors from A to abelian groups of the full subcategory of analytic functors induces an isomorphism between extension groups.

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Aurélien Djament. 2014-07-15. Groupes d'extensions et foncteurs polynomiaux. https://doi.org/10.1112/jlms%2Fjdv017

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