Geodesic
On quasitilted algebras which are one-point extensions of hereditary algebras
Colloquium Mathematicum, Tome 81 (1999) no. 1, pp. 141-152

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DOI

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. 
Dieter Happel; Inger Slungård. On quasitilted algebras which are one-point extensions of hereditary algebras. Colloquium Mathematicum, Tome 81 (1999) no. 1, pp. 141-152. doi: 10.4064/cm-81-1-141-152
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