Australian Category Seminar

Quasi-annihilators for module categories

Alexei Davydovยท19 December 2012

A quasi-annihilator of an object in a module category is a full subcategory in the acting category of objects which act "trivially". I'll try to explain why quasi-annihilators are always Tannakian, i.e. always have a fibre functor.

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