Homological Duality and Quasi-Heredity
Canadian journal of mathematics, Tome 48 (1996) no. 5, pp. 897-917

Voir la notice de l'article provenant de la source Cambridge University Press

This paper represents a general study of the (Yoneda) Ext-algebra A* of a finite dimensional K-algebra A. Our motivation lies in the problem of establishing conditions under which (i) the species of A* coincides with the dual species of A and (ii) the quasi-heredity of A (or A*) yields the quasi-heredity of A* (or A, respectively). These questions are closely related to the Kazhdan—Lusztig Theory as presented by [CPS2]. The main results include introducing the concept of a solid algebra and the relevant Theorem 4.5 as well as a rather complete description of the situation in the case of monomial algebras in Section 5.
DOI : 10.4153/CJM-1996-046-0
Mots-clés : 16E99, 16S99, 17B10
Ágoston, István; Dlab, Vlastimil. Homological Duality and Quasi-Heredity. Canadian journal of mathematics, Tome 48 (1996) no. 5, pp. 897-917. doi: 10.4153/CJM-1996-046-0
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