Introduction to Orthogonal, Symplectic, and Unitary Representations of Finite Groups

Introduction to Orthogonal, Symplectic, and Unitary Representations of Finite Groups PDF Author: Carl R. Riehm
Publisher: American Mathematical Soc.
ISBN: 0821885952
Category : Mathematics
Languages : en
Pages : 305

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Book Description

Introduction to Orthogonal, Symplectic, and Unitary Representations of Finite Groups

Introduction to Orthogonal, Symplectic, and Unitary Representations of Finite Groups PDF Author: Carl R. Riehm
Publisher: American Mathematical Soc.
ISBN: 0821885952
Category : Mathematics
Languages : en
Pages : 305

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Book Description


Introduction to Orthogonal, Symplectic, and Unitary Representations of Finite Groups

Introduction to Orthogonal, Symplectic, and Unitary Representations of Finite Groups PDF Author: Carl R. Riehm
Publisher: American Mathematical Soc.
ISBN: 9780821842713
Category : Mathematics
Languages : en
Pages : 291

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Book Description
Orthogonal, symplectic and unitary representations of finite groups lie at the crossroads of two more traditional subjects of mathematics--linear representations of finite groups, and the theory of quadratic, skew symmetric and Hermitian forms--and thus inherit some of the characteristics of both. This book is written as an introduction to the subject and not as an encyclopaedic reference text. The principal goal is an exposition of the known results on the equivalence theory, and related matters such as the Witt and Witt-Grothendieck groups, over the ``classical'' fields--algebraically closed, real closed, finite, local and global. A detailed exposition of the background material needed is given in the first chapter. It was A. Frohlich who first gave a systematic organization of this subject, in a series of papers beginning in 1969. His paper Orthogonal and symplectic representations of groups represents the culmination of his published work on orthogonal and symplectic representations. The author has included most of the work from that paper, extending it to include unitary representations, and also providing new approaches, such as the use of the equivariant Brauer-Wall group in describing the principal invariants of orthogonal representations and their interplay with each other.

The Arcata Conference on Representations of Finite Groups, Part 2

The Arcata Conference on Representations of Finite Groups, Part 2 PDF Author: Paul Fong
Publisher: American Mathematical Soc.
ISBN: 0821814788
Category : Mathematics
Languages : en
Pages : 562

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Book Description
The papers in these proceedings of the 1986 Arcata Summer Institute bear witness to the extraordinarily vital and intense research in the representation theory of finite groups. The confluence of diverse mathematical disciplines has brought forth work of great scope and depth. Particularly striking is the influence of algebraic geometry and cohomology theory in the modular representation theory and the character theory of reductive groups over finite fields, and in the general modular representation theory of finite groups. The continuing developments in block theory and the general character theory of finite groups is noteworthy. The expository and research aspects of the Summer Institute are well represented by these papers.

Representation Theory of Finite Groups and Finite-Dimensional Algebras

Representation Theory of Finite Groups and Finite-Dimensional Algebras PDF Author: Michler
Publisher: Birkhäuser
ISBN: 3034886586
Category : Mathematics
Languages : en
Pages : 526

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Book Description
From April 1, 1984 until March 31, 1991 the Deutsche Forschungsgemeinschaft has sponsored the project "Representation Theory of Finite Groups and Finite Di mensional Algebras". The proposal for this project was submitted by B. Huppert (Mainz), B. Fischer (Bielefeld), G. Michler (Essen), H. Pahlings (Aachen) and C. M. Ringel (Bielefeld) in order to strengthen the interaction between the different re search areas in representation theory. The Deutsche Forschungsgemeinschaft has given many research positions and fellowships for young algebraists enabling them to do research at their own uni versities or as visitors at well known research institutions in America, Australia, England and France. The whole project benefitted very much from an extensive exchange programme between German and American scientists sponsored by the Deutsche Forschungsgemeinschaft and by the National Science Foundation of the United States. This volume presents lectures given in a final conference and reports by members of the project. It is divided into two parts. The first part contains seven survey articles describing recent advances in different areas of representation theory. These articles do not only concentrate on the work done by the German research groups, but also inform on major developments of the subject at all. The volume omits those topics already treated in book form. In particular, it does not contain a survey on K.

The Endoscopic Classification of Representations Orthogonal and Symplectic Groups

The Endoscopic Classification of Representations Orthogonal and Symplectic Groups PDF Author: James Arthur
Publisher: American Mathematical Soc.
ISBN: 0821849905
Category : Mathematics
Languages : en
Pages : 610

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Book Description
Within the Langlands program, endoscopy is a fundamental process for relating automorphic representations of one group with those of another. In this book, Arthur establishes an endoscopic classification of automorphic representations of orthogonal and symplectic groups . The representations are shown to occur in families (known as global -packets and -packets), which are parametrized by certain self-dual automorphic representations of an associated general linear group . The central result is a simple and explicit formula for the multiplicity in the automorphic discrete spectrum of for any representation in a family. The results of the volume have already had significant applications: to the local Langlands correspondence, the construction of unitary representations, the existence of Whittaker models, the analytic behaviour of Langlands -functions, the spectral theory of certain locally symmetric spaces, and to new phenomena for symplectic epsilon-factors. One can expect many more. In fact, it is likely that both the results and the techniques of the volume will have applications to almost all sides of the Langlands program. The methods are by comparison of the trace formula of with its stabilization (and a comparison of the twisted trace formula of with its stabilization, which is part of work in progress by Moeglin and Waldspurger). This approach is quite different from methods that are based on -functions, converse theorems, or the theta correspondence. The comparison of trace formulas in the volume ought to be applicable to a much larger class of groups. Any extension at all will have further important implications for the Langlands program.

An Introduction to the Representation Theory of Groups

An Introduction to the Representation Theory of Groups PDF Author: Emmanuel Kowalski
Publisher: American Mathematical Society
ISBN: 1470409666
Category : Mathematics
Languages : en
Pages : 442

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Book Description
Representation theory is an important part of modern mathematics, not only as a subject in its own right but also as a tool for many applications. It provides a means for exploiting symmetry, making it particularly useful in number theory, algebraic geometry, and differential geometry, as well as classical and modern physics. The goal of this book is to present, in a motivated manner, the basic formalism of representation theory as well as some important applications. The style is intended to allow the reader to gain access to the insights and ideas of representation theory--not only to verify that a certain result is true, but also to explain why it is important and why the proof is natural. The presentation emphasizes the fact that the ideas of representation theory appear, sometimes in slightly different ways, in many contexts. Thus the book discusses in some detail the fundamental notions of representation theory for arbitrary groups. It then considers the special case of complex representations of finite groups and discusses the representations of compact groups, in both cases with some important applications. There is a short introduction to algebraic groups as well as an introduction to unitary representations of some noncompact groups. The text includes many exercises and examples.

Introduction to Mathematical Physics

Introduction to Mathematical Physics PDF Author: Michael T. Vaughn
Publisher: John Wiley & Sons
ISBN: 3527618864
Category : Science
Languages : en
Pages : 543

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Book Description
A comprehensive survey of all the mathematical methods that should be available to graduate students in physics. In addition to the usual topics of analysis, such as infinite series, functions of a complex variable and some differential equations as well as linear vector spaces, this book includes a more extensive discussion of group theory than can be found in other current textbooks. The main feature of this textbook is its extensive treatment of geometrical methods as applied to physics. With its introduction of differentiable manifolds and a discussion of vectors and forms on such manifolds as part of a first-year graduate course in mathematical methods, the text allows students to grasp at an early stage the contemporary literature on dynamical systems, solitons and related topological solutions to field equations, gauge theories, gravitational theory, and even string theory. Free solutions manual available for lecturers at www.wiley-vch.de/supplements/.

Representations of Finite Groups of Lie Type

Representations of Finite Groups of Lie Type PDF Author: François Digne
Publisher: Cambridge University Press
ISBN: 1108642128
Category : Mathematics
Languages : en
Pages : 267

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Book Description
On its original publication, this book provided the first elementary treatment of representation theory of finite groups of Lie type in book form. This second edition features new material to reflect the continuous evolution of the subject, including entirely new chapters on Hecke algebras, Green functions and Lusztig families. The authors cover the basic theory of representations of finite groups of Lie type, such as linear, unitary, orthogonal and symplectic groups. They emphasise the Curtis–Alvis duality map and Mackey's theorem and the results that can be deduced from it, before moving on to a discussion of Deligne–Lusztig induction and Lusztig's Jordan decomposition theorem for characters. The book contains the background information needed to make it a useful resource for beginning graduate students in algebra as well as seasoned researchers. It includes exercises and explicit examples.

An Introduction to Harmonic Analysis on Semisimple Lie Groups

An Introduction to Harmonic Analysis on Semisimple Lie Groups PDF Author: V. S. Varadarajan
Publisher: Cambridge University Press
ISBN: 9780521663625
Category : Mathematics
Languages : en
Pages : 326

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Book Description
Now in paperback, this graduate-level textbook is an introduction to the representation theory of semi-simple Lie groups. As such, it will be suitable for research students in algebra and analysis, and for research mathematicians requiring a readable account of the topic. The author emphasizes the development of the central themes of the sunject in the context of special examples, without losing sight of its general flow and structure. The book concludes with appendices sketching some basic topics with a comprehensive guide to further reading.

Representation Theory of Finite Reductive Groups

Representation Theory of Finite Reductive Groups PDF Author: Marc Cabanes
Publisher: Cambridge University Press
ISBN: 0521825172
Category : Mathematics
Languages : en
Pages : 457

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Book Description
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