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MonographDOI

Triangulated Categories in the Representation of Finite Dimensional Algebras

Dieter Happel
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TLDR
The use of triangulated categories in the study of representations of finite-dimensional algebras has been studied extensively in the literature as discussed by the authors, and triangulation is a useful tool in studying tilting processes.
Abstract
This book is an introduction to the use of triangulated categories in the study of representations of finite-dimensional algebras. In recent years representation theory has been an area of intense research and the author shows that derived categories of finite-dimensional algebras are a useful tool in studying tilting processes. Results on the structure of derived categories of hereditary algebras are used to investigate Dynkin algebras and interated tilted algebras. The author shows how triangulated categories arise naturally in the study of Frobenius categories. The study of trivial extension algebras and repetitive algebras is then developed using the triangulated structure on the stable category of the algebra's module category. With a comprehensive reference section, algebraists and research students in this field will find this an indispensable account of the theory of finite-dimensional algebras.

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Journal ArticleDOI

Mutation in triangulated categories and rigid Cohen–Macaulay modules

TL;DR: In this paper, the notion of mutation of n-cluster tilting subcategories in a triangulated category with Auslander-Reiten-Serre duality was introduced.
Book

Homological and Homotopical Aspects of Torsion Theories

TL;DR: Torsion pairs in abelian and triangulated categories Torsion pair in pretriangulated classes Compactly generated torsions in triangulation categories Hereditary torsion paired in triagonality categories TORSion pairs and closed model structures (Co)torsions and generalized Tate-Vogel cohomology Nakayama categories and Cohen-Macaulay cohology Bibliography Index as mentioned in this paper.
Posted Content

On differential graded categories

TL;DR: Differential graded categories enhance our understanding of triangulated categories appearing in algebra and geometry as discussed by the authors, and they have been extensively studied in recent work by Drinfeld, Dugger-Shipley,..., Toen and Toen-Vaquie.
Journal ArticleDOI

Perpendicular Categories with Applications to Representations and Sheaves

TL;DR: In this paper, the authors consider the formation of the subcategories right (left) perpendicular to a subcategory of objects in an abelian category, and show the applicability of this concept in finite dimensional algebras and their representations.