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arxiv: 2209.03192 · v1 · pith:TMOTZH4Nnew · submitted 2022-09-01 · 🧮 math.RT

Lifting of recollements and Gorenstein projective modules

classification 🧮 math.RT
keywords modulesgorenstein-projectiveliftingalgebracategorycm-typefinitegorenstein
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In the paper, we investigate the lifting of recollements with respect to Gorenstein-projective modules. Specifically, a homological ring epimorphism can induce a lifting of the recollement of the stable category of finitely generated Gorenstein-projective modules; the recollement of the bounded Gorenstein derived categories of some upper triangular matrix algebras can be lifted to the homotopy category of Gorenstein-projective modules. As a byproduct, we give a sufficient and necessary condition on the upper triangular matrix algebra T_{n}(A) to be of finite CM-type for an algebra A of finite CM-type.

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