On quasitilted algebras which are one-point extensions of hereditary algebras

Tom 81 / 1999

Dieter Happel, Inger Slungård Colloquium Mathematicum 81 (1999), 141-152 DOI: 10.4064/cm-81-1-141-152

Streszczenie

Quasitilted algebras have been introduced as a proper generalization of tilted algebras. In an earlier article we determined necessary conditions for one-point extensions of decomposable finite-dimensional hereditary algebras to be quasitilted and not tilted. In this article we study algebras satisfying these necessary conditions in order to investigate to what extent the conditions are sufficient.

Autorzy

  • Dieter Happel
  • Inger Slungård

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