On Auslander–Reiten components for quasitilted algebras

Volume 149 / 1996

Flávio U. Coelho, Andrzej Skowroński Fundamenta Mathematicae 149 (1996), 67-82 DOI: 10.4064/fm-149-1-67-82


An artin algebra A over a commutative artin ring R is called quasitilted if gl.dim A ≤ 2 and for each indecomposable finitely generated A-module M we have pd M ≤ 1 or id M ≤ 1. In [11] several characterizations of quasitilted algebras were proven. We investigate the structure and homological properties of connected components in the Auslander-Reiten quiver $Γ_A$ of a quasitilted algebra A.


  • Flávio U. CoelhoDepartment of Mathematics - IME, University of São Paulo, CP 20570, Cep 01452-990 Brasil
  • Andrzej SkowrońskiFaculty of Mathematics and Informatics, Nicholas Copernicus University, Chopina 12/18, 87-100 Toruń, Poland

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