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Titlebook: Algebras and Representation Theory; Karin Erdmann,Thorsten Holm Textbook 2018 Springer Nature Switzerland AG 2018 MSC (2010) 16-XX, 16G10,

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发表于 2025-3-21 17:20:25 | 显示全部楼层 |阅读模式
期刊全称Algebras and Representation Theory
影响因子2023Karin Erdmann,Thorsten Holm
视频video
发行地址Offers an elementary introduction that includes more advanced topics such as Gabriel’s theorem on quivers.Based on the authors’ extensive undergraduate teaching experience.Provides numerous worked exa
学科分类Springer Undergraduate Mathematics Series
图书封面Titlebook: Algebras and Representation Theory;  Karin Erdmann,Thorsten Holm Textbook 2018 Springer Nature Switzerland AG 2018 MSC (2010) 16-XX, 16G10,
影响因子.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..
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发表于 2025-3-21 21:36:45 | 显示全部楼层
Karin Erdmann,Thorsten HolmOffers an elementary introduction that includes more advanced topics such as Gabriel’s theorem on quivers.Based on the authors’ extensive undergraduate teaching experience.Provides numerous worked exa
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发表于 2025-3-22 10:20:35 | 显示全部楼层
https://doi.org/10.1057/9781137343215tion. Perhaps the most elementary way to think of modules is to view them as generalizations of vector spaces, where the role of scalars is played by elements in an algebra, or more generally, in a ring. We introduce many examples, and study the fundamental notions of submodules, factor modules and
发表于 2025-3-22 14:32:37 | 显示全部楼层
发表于 2025-3-22 18:46:00 | 显示全部楼层
https://doi.org/10.1057/9781137343215mple modules. In this chapter we study modules which are direct sums of simple modules, this leads to the theory of semisimple modules. For some algebras, every module is a direct sum of simple modules. These algebras are said to be semisimple, and they have important applications. In this chapter,
发表于 2025-3-23 00:04:56 | 显示全部楼层
Civil Society and Democratic Consolidation, matrix algebras are semisimple algebras. When the coefficient field is algebraically closed the Artin-Wedderburn theorem shows that every semisimple algebra is isomorphic to such an algebra. In general, a semisimple algebra is isomorphic to a direct product of matrix algebras but where matrix block
发表于 2025-3-23 02:19:31 | 显示全部楼层
https://doi.org/10.1057/9781137277121over a field is semisimple if and only the characteristic of the coefficient field does not divide the order of the group. We prove this theorem, and we discuss connections between the Artin-Wedderburn decomposition of a semisimple group algebra and properties of the group.
发表于 2025-3-23 08:31:22 | 显示全部楼层
https://doi.org/10.1057/9781137277121n finite-dimensional modules. In this setting one considers indecomposable modules, that is, modules which cannot be expressed as direct sums of proper submodules. Every finite-dimensional module is a direct sum of indecomposable modules. A direct sum decomposition into indecomposable summands is es
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