Quiver algebras and their representations (M. Barot) ---------------------------------------------------- Lecture 1: Introduction to the main notions. Quivers, representations of quivers, isomorphic representations, morphisms between representations, indecomposable representations. The Lemma of Fitting and the theorem of Krull-Remak-Schmidt. Lecture 2: The classification problem. Classification of all indecomposables up to isomorphisms in the linear quiver and the loop (for this and from here on: restriction to alg. closed ground field). A two-parameter family for the three-Kronecker quiver and the phenomenon of wildness. Representation types. Lecture 3: Morphisms give structure in these lists of indecomposables. Radical morphisms form an ideal. Irreducible morphisms. The Auslander-Reiten quiver. The theory of Auslander-Reiten shows the structure of the Auslander-Reiten quiver. Very briefly: knitting. The theorem that a finite component is all there is. Preprojective components always exist. Lecture 4: Independence of orientation. Base changes act on representation spaces. Quadratic form and homological interpretation. Orbit dimensions. Gabriel's Theorem that a quiver is representation finite iff the associated quadratic form is positive definite. Very briefly: classification with Dynkin diagrams. If there is time: Kac's Theorem. Lecture 5: Connection to (fin.dim.) algebras Path algebra. Modules over path algebras. Morita equivalence. Every basic algebra is a quotient of a path algebra and what that means for the modules.