2 papers
math.RT2005
Cluster categories and duplicated algebras
Ibrahim Assem, Thomas Brüstle, Ralf Schiffler +1
Let be a hereditary algebra. We construct a fundamental domain for the cluster category of inside the category of modules over the duplicated algebra of . We t…
math.RA2004
Abelian exact subcategories closed under predecessors
Ibrahim Assem, Manuel Saorin
In the category of finitely generated modules over an artinian ring, we classify all the abelian exact subcategories closed under predecessors or, equivalently, all the split torsi…