Representations of Algebras: Proceedings of the Third International Conference on Representations of Algebras, Held in Puebla, Mexico, August 4-8, 1980 (Lecture Notes in Mathematics)

On the number of terms in the middle of an almost split sequence....Pages 1-8 On adjoint functors in representation theory....Pages 9-25 Tilted algebras....Pages 26-38 Representation-finite tree algebras....Pages 39-54 Auslander-Reiten quivers of exact one-parameter partially ordered sets....Pages 55-61 Complexity and Krull Dimension....Pages 62-67 The universal cover of a representation-finite algebra....Pages 68-105 Group-graded algebras and the zero relation problem....Pages 106-115 Relative invariants and subgeneric orbits of quivers of finite and tame type....Pages 116-124 Construction of tilted algebras....Pages 125-144 On representations of the symmetric groups, nilpotent matrices, systems, vectorbundles and Schubert cells....Pages 145-167 Induced modules and comodules and representations of BOCS's and DGC's....Pages 168-185 Some remarks on the modular group algebras....Pages 186-195 Topological aspects of matrix problems....Pages 196-210 Some remarks on reflection functors....Pages 211-221 Algebras stably equivalent to factors of hereditary....Pages 222-241 On blocks with multiplicity one....Pages 242-256 The connected component group of an algebra....Pages 257-262 Cotorsion modules over tame finite-dimensional hereditary algebras....Pages 263-269 Inequalities for blocktheoretic invariants....Pages 270-284 TrD-periodic mdules over selfinjective algebras....Pages 285-301 On the 2-modular representations of M 12 ....Pages 302-314 Extensions of artinian rings by hereditary injective modules....Pages 315-330 Universal coverings of selfinjective algebras....Pages 331-349 Brauer-thrall I for orders and its application to orders with loops in their Auslander-Reiten graph....Pages 350-357 What conditions do vertices of irreducible modules satisfy?....Pages 358-363 On algebras whose trivial extensions are of finite representation type....Pages 364-371