Suppose that A is an abelian category whose derived category whose derived category D(A) has Hom sets and arbitrary (small) coproducts, let T be a (not necessarily classical) (n-)tilting object of A and let H be the heart of the associated t-structure on D(A). We show that there is a triangulated equivalence of unbounded derived categories between D(H) and D(A) which is compatible with the inclusion functor of H into D(A). The result admits a straightforward dualization to cotilting objects in abelian categories whose derived category has Hom sets and arbitrary products.
Derived equivalences induced by nonclassical tilting objects
FIOROT, LUISA;MATTIELLO, FRANCESCO;
2017
Abstract
Suppose that A is an abelian category whose derived category whose derived category D(A) has Hom sets and arbitrary (small) coproducts, let T be a (not necessarily classical) (n-)tilting object of A and let H be the heart of the associated t-structure on D(A). We show that there is a triangulated equivalence of unbounded derived categories between D(H) and D(A) which is compatible with the inclusion functor of H into D(A). The result admits a straightforward dualization to cotilting objects in abelian categories whose derived category has Hom sets and arbitrary products.File in questo prodotto:
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