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Author : Jan Št̓ovíček,Jan Trlifaj
Publisher : Unknown
Page : 128 pages
File Size : 40,7 Mb
Release : 2020
Category : Homology theory
ISBN : 1470456990
Author : Jan Šťovíček,Jan Trlifaj
Publisher : American Mathematical Soc.
Page : 298 pages
File Size : 44,9 Mb
Release : 2020-11-13
Category : Education
ISBN : 9781470451318
This volume contains the proceedings of the Workshop and 18th International Conference on Representations of Algebras (ICRA 2018) held from August 8–17, 2018, in Prague, Czech Republic. It presents several themes of contemporary representation theory together with some new tools, such as stable ∞ ∞-categories, stable derivators, and contramodules. In the first part, expanded lecture notes of four courses delivered at the workshop are presented, covering the representation theory of finite sets with correspondences, geometric theory of quiver Grassmannians, recent applications of contramodules to tilting theory, as well as symmetries in the representation theory over an abstract stable homotopy theory. The second part consists of six more-advanced papers based on plenary talks of the conference, presenting selected topics from contemporary representation theory: recollements and purity, maximal green sequences, cohomological Hall algebras, Hochschild cohomology of associative algebras, cohomology of local selfinjective algebras, and the higher Auslander–Reiten theory studied via homotopy theory.
Author : Geraldine Harris
Publisher : Manchester University Press
Page : 224 pages
File Size : 46,8 Mb
Release : 2013-07-19
Category : Art
ISBN : 1847791727
Beyond representation poses the question as to whether over the last thirty years there have been signs of ‘progress’ or ’progressiveness’ in the representation of ‘marginalised’ or subaltern identity categories within television drama in Britain and the US. In doing so it interrogates some of the key assumptions concerning the relationship between aesthetics and the politics of identity that have influenced and informed television drama criticism during this period. This book can function as a textbook because it provides students with a clear and coherent pathway through complex, wide-reaching and highly influential interdisciplinary terrain. Yet its rigorous and incisive re-evaluation of some of the key concepts that dominated academic thought in the twentieth century also make it of interest to scholars and specialists. Chapters examine ideas around politics and aesthetics emerging from Marxist-socialism and postmodernism, feminism and postmodern feminism, anti-racism and postcolonialism, queer theory and theories of globalisation, so as to evaluates their impact on television criticism and on television as an institution. These discussions are consolidated through case studies that offer analyses of a range of television drama texts including Big Women, Ally McBeal, Supply and Demand, The Bill, Second Generation, Star Trek (Enterprise), Queer as Folk, Metrosexuality and The Murder of Stephen Lawrence. This book is aimed at students and scholars of Television Drama, Media and Communication, Cultural Studies, Women’s Studies and those concerned with questions of politics and aesthetics in other disciplines.
Author : Maurice Auslander,Idun Reiten,Sverre O. Smalo
Publisher : Cambridge University Press
Page : 444 pages
File Size : 51,5 Mb
Release : 1997-08-21
Category : Mathematics
ISBN : 0521599237
This book is an introduction to the contemporary representation theory of Artin algebras, by three very distinguished practitioners in the field. Beyond assuming some first-year graduate algebra and basic homological algebra, the presentation is entirely self-contained, so the book is suitable for any mathematicians (especially graduate students) wanting an introduction to this active field.'...written in a clear comprehensive style with full proofs. It can very well serve as an excellent reference as well as a textbook for graduate students.' EMS Newletter
Author : Benjamin Steinberg
Publisher : Springer
Page : 320 pages
File Size : 40,5 Mb
Release : 2016-12-09
Category : Mathematics
ISBN : 9783319439327
This first text on the subject provides a comprehensive introduction to the representation theory of finite monoids. Carefully worked examples and exercises provide the bells and whistles for graduate accessibility, bringing a broad range of advanced readers to the forefront of research in the area. Highlights of the text include applications to probability theory, symbolic dynamics, and automata theory. Comfort with module theory, a familiarity with ordinary group representation theory, and the basics of Wedderburn theory, are prerequisites for advanced graduate level study. Researchers in algebra, algebraic combinatorics, automata theory, and probability theory, will find this text enriching with its thorough presentation of applications of the theory to these fields. Prior knowledge of semigroup theory is not expected for the diverse readership that may benefit from this exposition. The approach taken in this book is highly module-theoretic and follows the modern flavor of the theory of finite dimensional algebras. The content is divided into 7 parts. Part I consists of 3 preliminary chapters with no prior knowledge beyond group theory assumed. Part II forms the core of the material giving a modern module-theoretic treatment of the Clifford –Munn–Ponizovskii theory of irreducible representations. Part III concerns character theory and the character table of a monoid. Part IV is devoted to the representation theory of inverse monoids and categories and Part V presents the theory of the Rhodes radical with applications to triangularizability. Part VI features 3 chapters devoted to applications to diverse areas of mathematics and forms a high point of the text. The last part, Part VII, is concerned with advanced topics. There are also 3 appendices reviewing finite dimensional algebras, group representation theory, and Möbius inversion.
Author : Anthony W. Knapp
Publisher : Springer Science & Business Media
Page : 622 pages
File Size : 50,7 Mb
Release : 2013-03-09
Category : Mathematics
ISBN : 9781475724530
Lie Groups Beyond an Introduction takes the reader from the end of introductory Lie group theory to the threshold of infinite-dimensional group representations. Merging algebra and analysis throughout, the author uses Lie-theoretic methods to develop a beautiful theory having wide applications in mathematics and physics. A feature of the presentation is that it encourages the reader's comprehension of Lie group theory to evolve from beginner to expert: initial insights make use of actual matrices, while later insights come from such structural features as properties of root systems, or relationships among subgroups, or patterns among different subgroups.
Author : Charles W. Curtis,Irving Reiner
Publisher : American Mathematical Soc.
Page : 714 pages
File Size : 52,5 Mb
Release : 2006
Category : Mathematics
ISBN : 9780821840665
Provides an introduction to various aspects of the representation theory of finite groups. This book covers such topics as general non-commutative algebras, Frobenius algebras, representations over non-algebraically closed fields and fields of non-zero characteristic, and integral representations.
Author : M. F. Atiyah
Publisher : Cambridge University Press
Page : 349 pages
File Size : 47,5 Mb
Release : 1979
Category : Mathematics
ISBN : 9780521226363
In 1977 a symposium was held in Oxford to introduce Lie groups and their representations to non-specialists.
Author : Peter Webb
Publisher : Cambridge University Press
Page : 339 pages
File Size : 45,9 Mb
Release : 2016-08-19
Category : Mathematics
ISBN : 9781107162396
This graduate-level text provides a thorough grounding in the representation theory of finite groups over fields and rings. The book provides a balanced and comprehensive account of the subject, detailing the methods needed to analyze representations that arise in many areas of mathematics. Key topics include the construction and use of character tables, the role of induction and restriction, projective and simple modules for group algebras, indecomposable representations, Brauer characters, and block theory. This classroom-tested text provides motivation through a large number of worked examples, with exercises at the end of each chapter that test the reader's knowledge, provide further examples and practice, and include results not proven in the text. Prerequisites include a graduate course in abstract algebra, and familiarity with the properties of groups, rings, field extensions, and linear algebra.
Author : Stephen Berman
Publisher : American Mathematical Soc.
Page : 154 pages
File Size : 44,8 Mb
Release : 2005
Category : Mathematics
ISBN : 9780821837016
The University of Virginia (Charlottesville) hosted an international conference on Infinite-dimensional Aspects of Representation Theory and Applications. This volume contains papers resulting from the mini-courses and talks given at the meeting. Beyond the techniques and ideas related to representation theory, the book demonstrates connections to number theory, algebraic geometry, and mathematical physics. The specific topics covered include Hecke algebras, quantum groups, infinite-dimensional Lie algebras, quivers, modular representations, and Gromov-Witten invariants. The book is suitable for graduate students and researchers interested in representation theory.
Author : Raymond C. Fabec
Publisher : CRC Press
Page : 309 pages
File Size : 44,6 Mb
Release : 2018-10-03
Category : Mathematics
ISBN : 9781351990219
Infinite dimensional representation theory blossomed in the latter half of the twentieth century, developing in part with quantum mechanics and becoming one of the mainstays of modern mathematics. Fundamentals of Infinite Dimensional Representation Theory provides an accessible account of the topics in analytic group representation theory and operator algebras from which much of the subject has evolved. It presents new and old results in a coherent and natural manner and studies a number of tools useful in various areas of this diversely applied subject. From Borel spaces and selection theorems to Mackey's theory of induction, measures on homogeneous spaces, and the theory of left Hilbert algebras, the author's self-contained treatment allows readers to choose from a wide variety of topics and pursue them independently according to their needs. Beyond serving as both a general reference and as a text for those requiring a background in group-operator algebra representation theory, for careful readers, this monograph helps reveal not only the subject's utility, but also its inherent beauty.
Author : J D Vergados
Publisher : World Scientific Publishing Company
Page : 348 pages
File Size : 41,6 Mb
Release : 2016-12-29
Category : Electronic
ISBN : 9789813202467
This volume goes beyond the understanding of symmetries and exploits them in the study of the behavior of both classical and quantum physical systems. Thus it is important to study the symmetries described by continuous (Lie) groups of transformations. We then discuss how we get operators that form a Lie algebra. Of particular interest to physics is the representation of the elements of the algebra and the group in terms of matrices and, in particular, the irreducible representations. These representations can be identified with physical observables. This leads to the study of the classical Lie algebras, associated with unitary, unimodular, orthogonal and symplectic transformations. We also discuss some special algebras in some detail. The discussion proceeds along the lines of the Cartan-Weyl theory via the root vectors and root diagrams and, in particular, the Dynkin representation of the roots. Thus the representations are expressed in terms of weights, which are generated by the application of the elements of the algebra on uniquely specified highest weight states. Alternatively these representations can be described in terms of tensors labeled by the Young tableaux associated with the discrete symmetry Sn. The connection between the Young tableaux and the Dynkin weights is also discussed. It is also shown that in many physical systems the quantum numbers needed to specify the physical states involve not only the highest symmetry but also a number of sub-symmetries contained in them. This leads to the study of the role of subalgebras and in particular the possible maximal subalgebras. In many applications the physical system can be considered as composed of subsystems obeying a given symmetry. In such cases the reduction of the Kronecker product of irreducible representations of classical and special algebras becomes relevant and is discussed in some detail. The method of obtaining the relevant Clebsch-Gordan (C-G) coefficients for such algebras is discussed and some relevant algorithms are provided. In some simple cases suitable numerical tables of C-G are also included. The above exposition contains many examples, both as illustrations of the main ideas as well as well motivated applications. To this end two appendices of 51 pages — 11 tables in Appendix A, summarizing the material discussed in the main text and 39 tables in Appendix B containing results of more sophisticated examples are supplied. Reference to the tables is given in the main text and a guide to the appropriate section of the main text is given in the tables. Request Inspection Copy
Author : James E. Humphreys
Publisher : American Mathematical Soc.
Page : 289 pages
File Size : 44,7 Mb
Release : 2021-07-14
Category : Education
ISBN : 9781470463267
This is the first textbook treatment of work leading to the landmark 1979 Kazhdan–Lusztig Conjecture on characters of simple highest weight modules for a semisimple Lie algebra g g over C C. The setting is the module category O O introduced by Bernstein–Gelfand–Gelfand, which includes all highest weight modules for g g such as Verma modules and finite dimensional simple modules. Analogues of this category have become influential in many areas of representation theory. Part I can be used as a text for independent study or for a mid-level one semester graduate course; it includes exercises and examples. The main prerequisite is familiarity with the structure theory of g g. Basic techniques in category O O such as BGG Reciprocity and Jantzen's translation functors are developed, culminating in an overview of the proof of the Kazhdan–Lusztig Conjecture (due to Beilinson–Bernstein and Brylinski–Kashiwara). The full proof however is beyond the scope of this book, requiring deep geometric methods: D D-modules and perverse sheaves on the flag variety. Part II introduces closely related topics important in current research: parabolic category O O, projective functors, tilting modules, twisting and completion functors, and Koszul duality theorem of Beilinson–Ginzburg–Soergel.
Author : Caroline Gruson,Vera Serganova
Publisher : Springer
Page : 223 pages
File Size : 41,9 Mb
Release : 2018-10-23
Category : Mathematics
ISBN : 9783319982717
This text covers a variety of topics in representation theory and is intended for graduate students and more advanced researchers who are interested in the field. The book begins with classical representation theory of finite groups over complex numbers and ends with results on representation theory of quivers. The text includes in particular infinite-dimensional unitary representations for abelian groups, Heisenberg groups and SL(2), and representation theory of finite-dimensional algebras. The last chapter is devoted to some applications of quivers, including Harish-Chandra modules for SL(2). Ample examples are provided and some are revisited with a different approach when new methods are introduced, leading to deeper results. Exercises are spread throughout each chapter. Prerequisites include an advanced course in linear algebra that covers Jordan normal forms and tensor products as well as basic results on groups and rings.
Author : Charles W. Curtis,Irving Reiner
Publisher : Unknown
Page : 708 pages
File Size : 51,5 Mb
Release : 1962
Category : Mathematics
ISBN : UOM:39015026528292
Offers an introduction to various aspects of the representation theory of finite groups. The authors go beyond the standard elementary representation theory, including a treatment of topics such as general non-commutative algebras, Frobenius algebras, and representations over non-algebraically closed fields and fields of non-zero characteristic.
