1.

Record Nr.

UNINA9910300139503321

Autore

Erdmann Karin

Titolo

Algebras and Representation Theory / / by Karin Erdmann, Thorsten Holm

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2018

ISBN

3-319-91998-9

Edizione

[1st ed. 2018.]

Descrizione fisica

1 online resource (IX, 298 p. 59 illus.)

Collana

Springer Undergraduate Mathematics Series, , 1615-2085

Disciplina

512

Soggetti

Associative rings

Rings (Algebra)

Commutative algebra

Commutative rings

Group theory

Category theory (Mathematics)

Homological algebra

Associative Rings and Algebras

Commutative Rings and Algebras

Group Theory and Generalizations

Category Theory, Homological Algebra

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di contenuto

1 Introduction -- 2 Algebras -- 3 Modules and Representations -- 4 Simple Modules in the Jordan-Hölder Theorem -- 5 Semisimple Modules and Semisimple Algebras -- 6 The Structure of Semisimple ALgebras - The Artin-Wedderburn Theorem -- 7 Semisimple Group Algebras and Maschke's Theorem -- 8 Indecomposable Modules -- 9 Representation Type -- 10 Representations of Quivers -- 11 Diagrams and Roots -- 12 Gabriel's Theorem -- 13 Proofs and Background -- 14 Appendix A: Induced Modules for Group Algebras -- 15 Appendix B: Solutions to Selected Exercises -- Index.

Sommario/riassunto

This carefully written textbook provides an accessible introduction to the representation theory of algebras, including representations of



quivers. The book starts with basic topics on algebras and modules, covering fundamental results such as the Jordan-Hölder theorem on composition series, the Artin-Wedderburn theorem on the structure of semisimple algebras and the Krull-Schmidt theorem on indecomposable modules. The authors then go on to study representations of quivers in detail, leading to a complete proof of Gabriel's celebrated theorem characterizing the representation type of quivers in terms of Dynkin diagrams. Requiring only introductory courses on linear algebra and groups, rings and fields, this textbook is aimed at undergraduate students. With numerous examples illustrating abstract concepts, and including more than 200 exercises (with solutions to about a third of them), the book provides an example-driven introduction suitable for self-study and use alongside lecture courses.