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Representations of Hecke Algebras at Roots of Unity

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Release : 2011-05-18
Genre : Mathematics
Kind : eBook
Book Rating : 163/5 ( reviews)

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Book Synopsis Representations of Hecke Algebras at Roots of Unity by : Meinolf Geck

Download or read book Representations of Hecke Algebras at Roots of Unity written by Meinolf Geck. This book was released on 2011-05-18. Available in PDF, EPUB and Kindle. Book excerpt: The modular representation theory of Iwahori-Hecke algebras and this theory's connection to groups of Lie type is an area of rapidly expanding interest; it is one that has also seen a number of breakthroughs in recent years. In classifying the irreducible representations of Iwahori-Hecke algebras at roots of unity, this book is a particularly valuable addition to current research in this field. Using the framework provided by the Kazhdan-Lusztig theory of cells, the authors develop an analogue of James' (1970) "characteristic-free'' approach to the representation theory of Iwahori-Hecke algebras in general. Presenting a systematic and unified treatment of representations of Hecke algebras at roots of unity, this book is unique in its approach and includes new results that have not yet been published in book form. It also serves as background reading to further active areas of current research such as the theory of affine Hecke algebras and Cherednik algebras. The main results of this book are obtained by an interaction of several branches of mathematics, namely the theory of Fock spaces for quantum affine Lie algebras and Ariki's theorem, the combinatorics of crystal bases, the theory of Kazhdan-Lusztig bases and cells, and computational methods. This book will be of use to researchers and graduate students in representation theory as well as any researchers outside of the field with an interest in Hecke algebras.

Representations of Rank Two Affine Hecke Algebras at Roots of Unity

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Release : 2010
Genre :
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Book Synopsis Representations of Rank Two Affine Hecke Algebras at Roots of Unity by : Matt Davis

Download or read book Representations of Rank Two Affine Hecke Algebras at Roots of Unity written by Matt Davis. This book was released on 2010. Available in PDF, EPUB and Kindle. Book excerpt:

Double Affine Hecke Algebras

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Release : 2005-03-24
Genre : Mathematics
Kind : eBook
Book Rating : 254/5 ( reviews)

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Book Synopsis Double Affine Hecke Algebras by : Ivan Cherednik

Download or read book Double Affine Hecke Algebras written by Ivan Cherednik. This book was released on 2005-03-24. Available in PDF, EPUB and Kindle. Book excerpt: This is an essentially self-contained monograph in an intriguing field of fundamental importance for Representation Theory, Harmonic Analysis, Mathematical Physics, and Combinatorics. It is a major source of general information about the double affine Hecke algebra, also called Cherednik's algebra, and its impressive applications. Chapter 1 is devoted to the Knizhnik-Zamolodchikov equations attached to root systems and their relations to affine Hecke algebras, Kac-Moody algebras, and Fourier analysis. Chapter 2 contains a systematic exposition of the representation theory of the one-dimensional DAHA. It is the simplest case but far from trivial with deep connections in the theory of special functions. Chapter 3 is about DAHA in full generality, including applications to Macdonald polynomials, Fourier transforms, Gauss-Selberg integrals, Verlinde algebras, and Gaussian sums. This book is designed for mathematicians and physicists, experts and students, for those who want to master the double Hecke algebra technique. Visit http://arxiv.org/math.QA/0404307 to read Chapter 0 and selected topics from other chapters.

Representations of Graded Hecke Algebras Associated to Noncrystallographic Root Systems

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Release : 1995
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Book Synopsis Representations of Graded Hecke Algebras Associated to Noncrystallographic Root Systems by : Catherine E. Kriloff

Download or read book Representations of Graded Hecke Algebras Associated to Noncrystallographic Root Systems written by Catherine E. Kriloff. This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt:

Iwahori-Hecke Algebras and Schur Algebras of the Symmetric Group

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Release : 1999
Genre : Mathematics
Kind : eBook
Book Rating : 267/5 ( reviews)

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Book Synopsis Iwahori-Hecke Algebras and Schur Algebras of the Symmetric Group by : Andrew Mathas

Download or read book Iwahori-Hecke Algebras and Schur Algebras of the Symmetric Group written by Andrew Mathas. This book was released on 1999. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a fully self-contained introduction to the modular representation theory of the Iwahori-Hecke algebras of the symmetric groups and of the $q$-Schur algebras. The study of these algebras was pioneered by Dipper and James in a series of landmark papers. The primary goal of the book is to classify the blocks and the simple modules of both algebras. The final chapter contains a survey of recent advances and open problems. The main results are proved by showing that the Iwahori-Hecke algebras and $q$-Schur algebras are cellular algebras (in the sense of Graham and Lehrer). This is proved by exhibiting natural bases of both algebras which are indexed by pairs of standard and semistandard tableaux respectively. Using the machinery of cellular algebras, which is developed in chapter 2, this results in a clean and elegant classification of the irreducible representations of both algebras. The block theory is approached by first proving an analogue of the Jantzen sum formula for the $q$-Schur algebras. This book is the first of its kind covering the topic. It offers a substantially simplified treatment of the original proofs. The book is a solid reference source for experts. It will also serve as a good introduction to students and beginning researchers since each chapter contains exercises and there is an appendix containing a quick development of the representation theory of algebras. A second appendix gives tables of decomposition numbers.

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