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Singular equivalences and Auslander-Reiten conjecture (2011.02729v1)
Published 5 Nov 2020 in math.RT and math.RA
Abstract: Auslander-Reiten conjecture, which says that an Artin algebra does not have any non-projective generator with vanishing self-extensions in all positive degrees, is shown to be invariant under certain singular equivalences induced by adjoint pairs, which occur often in matrix algebras, recollements and change of rings. Accordingly, several reduction methods are established to study this conjecture.
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