The braid group action on the set of exceptional sequences of a hereditary artin algebra
Ringel, Claus Michael ; Göbel, Rüdiger (Hrsg.)In: Abelian group theory and related topics: Conference on Abelian Groups, August 1 - 7, 1993, Oberwolfach, Germany, Jg. 171, S. 339-3521994Algebras whose Auslander-Reiten quivers have large regular components
Crawley-Boevey, William ; Ringel, Claus MichaelIn: Journal of Algebra, Jg. 153 H. 2, S. 494-5161992Auslander algebras as quasi-hereditary algebras
Dlab, Vlastimil ; Ringel, Claus MichaelIn: Journal of the London Mathematical Society : Ser. 2, Jg. 39 H. 3, S. 457-4661989Auslander-Reiten sequences with few middle terms and applications to string algebras
Butler, M. C. R. ; Ringel, Claus MichaelIn: Communications in Algebra, Jg. 15 H. 1-2, S. 145-1791987Balanced local rings with commutative residue fields
Dlab, Vlastimil ; Ringel, Claus MichaelIn: Bulletin of the American Mathematical Society, Jg. 78 H. 5, S. 771-7751972Balanced rings
Dlab, Vlastimil ; Ringel, Claus MichaelIn: Lectures on rings and modules, Jg. 246, S. 73-1431972Binary polyhedral groups and Euclidean diagrams
Happel, Dieter ; Preiser, Udo ; Ringel, Claus MichaelIn: Manuscripta mathematica, Jg. 31 H. 1-3, S. 317-3291980Bricks in hereditary length categories
Ringel, Claus MichaelIn: Resultate der Mathematik, Jg. 6, S. 64-701983A bypass of an arrow is sectional
Crawley-Boevey, William ; Happel, Dieter ; Ringel, Claus MichaelIn: Archiv der Mathematik, Jg. 58 H. 6, S. 525-5281992The canonical algebras (with an appendix by W. Crawley-Boevey)
Crawley-Boevey, William ; Ringel, Claus Michael ; Balcerzyk, Stanislaw (Hrsg.)In: Topics in Algebra. 1: Rings and representations of algebras, Jg. 26,1, S. 407-4321990The category of good modules over a quasi-hereditary algebra has almost split sequences
Ringel, Claus Michael1989The category of modules with good filtrations over a quasi-heriditary algebra has almost split sequences
Ringel, Claus MichaelIn: Mathematische Zeitschrift, Jg. 208 H. 1, S. 209-2231991A class of balanced non-uniserial rings
Dlab, Vlastimil ; Ringel, Claus MichaelIn: Mathematische Annalen, Jg. 195 H. 2, S. 279-2911972A class of bounded hereditary noetherian domains
Dlab, Vlastimil ; Ringel, Claus MichaelIn: Journal of Algebra, Jg. 92 H. 2, S. 311-3211985Coherent tubes
d'Este, Gabriella ; Ringel, Claus MichaelIn: Journal of algebra, Jg. 87 H. 1, S. 150-2011984Commutative QF-1 rings
Ringel, Claus MichaelIn: Proceedings of the American Mathematical Society, Jg. 42 H. 2, S. 365-3681974The composition algebra of a cyclic quiver
Ringel, Claus MichaelIn: Proceedings of the London Mathematical Society : Ser. 3, Jg. 66, S. 507-5371993A construction for quasi-hereditary algebras
Dlab, Vlastimil ; Ringel, Claus MichaelIn: Compositio Mathematica, Jg. 70 H. 2, S. 155-1751989A construction of rings whose injective hulls allow a ring structure
Dlab, Vlastimil ; Ringel, Claus MichaelIn: The journal of the Australian Mathematical Society, Jg. 16 H. 01, S. 7-131973