Characteristic tilting modules and Ringel duals |
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Authors: | XI Changchang |
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Affiliation: | Department of Mathematics, Beijing Normal University, 100875 Beijing, China |
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Abstract: | The characteristic tilting modules of quasi-hereditary algebras which are dual extensions of directed monomial algebras are explicitly constructed; and it is shown that the Ringel dual of the dual extension of an arbitrary hereditary algebra has triangular decomposition and bipartite quiver. |
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Keywords: | quasi-hereditary algebras characteristic modules dual extensions Ringel duals |
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