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Geometric partial comodules over flat coalgebras in Abelian categories are globalizable

par Saracco, Paolo ;Vercruysse, Joost
Référence Journal of pure and applied algebra, 228, 3, page (107502)
Publication Publié, 2024-03-01

Article révisé par les pairs

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Résumé :

The aim of this paper is to prove the statement in the title. As a by-product, we obtain new globalization results in cases never considered before, such as partial corepresentations of Hopf algebras. Moreover, we show that for partial representations of groups and Hopf algebras, our globalization coincides with those described earlier in literature. Finally, we introduce Hopf partial comodules over a bialgebra as geometric partial comodules in the monoidal category of (global) modules. By applying our globalization theorem we obtain an analogue of the fundamental theorem for Hopf modules in this partial setting.