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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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. 
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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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