The graded centers of derived discrete algebras

Details The graded centers of derived discrete algebras The graded centers of derived discrete algebras

2009-06-08

arxiv.org/abs/0906.1567v1

Mathematics

Representation Theory

Scientific paper

We describe in the paper the graded centers of the derived categories of the derived discrete algebras. In particular, we prove that if $A$ is a derived discrete algebra, then the reduced part of the graded center of the derived category of $A$ is nontrivial if and only if $A$ has infinite global dimension. Moreover, we show that the nilpotent part of the graded center is controlled by the objects for which the Auslander--Reiten translation coincides with a power of the suspension functor.

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