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The Projective Leavitt Complex

Published online by Cambridge University Press:  15 August 2018

Huanhuan Li*
Affiliation:
Centre for Research in Mathematics, Western Sydney University, Sydney, NSW 2150, Australia ([email protected])

Abstract

For a finite quiver Q without sources, we consider the corresponding radical square zero algebra A. We construct an explicit compact generator for the homotopy category of acyclic complexes of projective A-modules. We call such a generator the projective Leavitt complex of Q. This terminology is justified by the following result: the opposite differential graded endomorphism algebra of the projective Leavitt complex of Q is quasi-isomorphic to the Leavitt path algebra of Qop. Here, Qop is the opposite quiver of Q, and the Leavitt path algebra of Qop is naturally ${\open Z}$-graded and viewed as a differential graded algebra with trivial differential.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 2018 

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