Double Affine Hecke Algebras

Double Affine Hecke Algebras PDF Author: Ivan Cherednik
Publisher: Cambridge University Press
ISBN: 0521609186
Category : Mathematics
Languages : fr
Pages : 449

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Book Description
This is an essentially self-contained monograph centered on the new double Hecke algebra technique.

Double Affine Hecke Algebras

Double Affine Hecke Algebras PDF Author: Ivan Cherednik
Publisher: Cambridge University Press
ISBN: 0521609186
Category : Mathematics
Languages : fr
Pages : 449

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Book Description
This is an essentially self-contained monograph centered on the new double Hecke algebra technique.

Affine Hecke Algebras and Orthogonal Polynomials

Affine Hecke Algebras and Orthogonal Polynomials PDF Author: I. G. Macdonald
Publisher: Cambridge University Press
ISBN: 9780521824729
Category : Mathematics
Languages : en
Pages : 200

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Book Description
First account of a theory, created by Macdonald, of a class of orthogonal polynomial, which is related to mathematical physics.

Representations of Affine Hecke Algebras

Representations of Affine Hecke Algebras PDF Author: Nanhua Xi
Publisher: Springer
ISBN: 3540486828
Category : Mathematics
Languages : en
Pages : 147

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Book Description
Kazhdan and Lusztig classified the simple modules of an affine Hecke algebra Hq (q E C*) provided that q is not a root of 1 (Invent. Math. 1987). Ginzburg had some very interesting work on affine Hecke algebras. Combining these results simple Hq-modules can be classified provided that the order of q is not too small. These Lecture Notes of N. Xi show that the classification of simple Hq-modules is essentially different from general cases when q is a root of 1 of certain orders. In addition the based rings of affine Weyl groups are shown to be of interest in understanding irreducible representations of affine Hecke algebras. Basic knowledge of abstract algebra is enough to read one third of the book. Some knowledge of K-theory, algebraic group, and Kazhdan-Lusztig cell of Cexeter group is useful for the rest

Lie Groups, Geometry, and Representation Theory

Lie Groups, Geometry, and Representation Theory PDF Author: Victor G. Kac
Publisher: Springer
ISBN: 3030021912
Category : Mathematics
Languages : en
Pages : 545

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Book Description
This volume, dedicated to the memory of the great American mathematician Bertram Kostant (May 24, 1928 – February 2, 2017), is a collection of 19 invited papers by leading mathematicians working in Lie theory, representation theory, algebra, geometry, and mathematical physics. Kostant’s fundamental work in all of these areas has provided deep new insights and connections, and has created new fields of research. This volume features the only published articles of important recent results of the contributors with full details of their proofs. Key topics include: Poisson structures and potentials (A. Alekseev, A. Berenstein, B. Hoffman) Vertex algebras (T. Arakawa, K. Kawasetsu) Modular irreducible representations of semisimple Lie algebras (R. Bezrukavnikov, I. Losev) Asymptotic Hecke algebras (A. Braverman, D. Kazhdan) Tensor categories and quantum groups (A. Davydov, P. Etingof, D. Nikshych) Nil-Hecke algebras and Whittaker D-modules (V. Ginzburg) Toeplitz operators (V. Guillemin, A. Uribe, Z. Wang) Kashiwara crystals (A. Joseph) Characters of highest weight modules (V. Kac, M. Wakimoto) Alcove polytopes (T. Lam, A. Postnikov) Representation theory of quantized Gieseker varieties (I. Losev) Generalized Bruhat cells and integrable systems (J.-H. Liu, Y. Mi) Almost characters (G. Lusztig) Verlinde formulas (E. Meinrenken) Dirac operator and equivariant index (P.-É. Paradan, M. Vergne) Modality of representations and geometry of θ-groups (V. L. Popov) Distributions on homogeneous spaces (N. Ressayre) Reduction of orthogonal representations (J.-P. Serre)

Reflection Groups and Coxeter Groups

Reflection Groups and Coxeter Groups PDF Author: James E. Humphreys
Publisher: Cambridge University Press
ISBN: 9780521436137
Category : Mathematics
Languages : en
Pages : 222

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Book Description
This graduate textbook presents a concrete and up-to-date introduction to the theory of Coxeter groups. The book is self-contained, making it suitable either for courses and seminars or for self-study. The first part is devoted to establishing concrete examples. Finite reflection groups acting on Euclidean spaces are discussed, and the first part ends with the construction of the affine Weyl groups, a class of Coxeter groups that plays a major role in Lie theory. The second part (which is logically independent of, but motivated by, the first) develops from scratch the properties of Coxeter groups in general, including the Bruhat ordering and the seminal work of Kazhdan and Lusztig on representations of Hecke algebras associated with Coxeter groups is introduced. Finally a number of interesting complementary topics as well as connections with Lie theory are sketched. The book concludes with an extensive bibliography on Coxeter groups and their applications.

Iwahori-Hecke Algebras and their Representation Theory

Iwahori-Hecke Algebras and their Representation Theory PDF Author: Ivan Cherednik
Publisher: Springer
ISBN: 3540362053
Category : Mathematics
Languages : en
Pages : 117

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Book Description
Two basic problems of representation theory are to classify irreducible representations and decompose representations occuring naturally in some other context. Algebras of Iwahori-Hecke type are one of the tools and were, probably, first considered in the context of representation theory of finite groups of Lie type. This volume consists of notes of the courses on Iwahori-Hecke algebras and their representation theory, given during the CIME summer school which took place in 1999 in Martina Franca, Italy.

Ring Theory 2019 - Proceedings Of The Eighth China-japan-korea International Symposium On Ring Theory

Ring Theory 2019 - Proceedings Of The Eighth China-japan-korea International Symposium On Ring Theory PDF Author: Hideto Asashiba
Publisher: World Scientific
ISBN: 9811230307
Category : Mathematics
Languages : en
Pages : 254

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Book Description
Since 1991, the group of ring theorists from China and Japan, joined by Korea from 1995 onwards, took turns to hold the quadrennial international conferences (sometimes also referred to as symposiums). As the proceedings of the eighth conference held in Nagoya, Japan in 2019, this volume consists of a collection of articles by invited speakers (survey) and general speakers (survey and original), all of which were refereed by world experts.The survey articles show the trends of current research and offer clear, thorough explanations that are ideal for researchers also in other specialized areas of ring theory. The original articles display new results, ideas and tools for research investigations in ring theory.The articles cover major areas in ring theory, such as: structures of rings, module theory, homological algebra, groups, Hopf algebras, Lie theory, representation theory of rings, (non-commutative) algebraic geometry, commutative rings (structures, representations), amongst others.This volume is a useful resource for researchers — both beginners and advanced experts — in ring theory.

Linear and Projective Representations of Symmetric Groups

Linear and Projective Representations of Symmetric Groups PDF Author: Alexander Kleshchev
Publisher: Cambridge University Press
ISBN: 1139444069
Category : Mathematics
Languages : en
Pages : 293

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Book Description
The representation theory of symmetric groups is one of the most beautiful, popular and important parts of algebra, with many deep relations to other areas of mathematics. Kleshchev describes a new approach to the subject, based on the recent work of Lascoux, Leclerc, Thibon, Ariki, Grojnowski and Brundan, as well as his own

Representations of Affine Hecke Algebras

Representations of Affine Hecke Algebras PDF Author: Nanhua Xi
Publisher: Springer
ISBN: 9783540583899
Category : Mathematics
Languages : en
Pages : 152

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Book Description
Kazhdan and Lusztig classified the simple modules of an affine Hecke algebra Hq (q E C*) provided that q is not a root of 1 (Invent. Math. 1987). Ginzburg had some very interesting work on affine Hecke algebras. Combining these results simple Hq-modules can be classified provided that the order of q is not too small. These Lecture Notes of N. Xi show that the classification of simple Hq-modules is essentially different from general cases when q is a root of 1 of certain orders. In addition the based rings of affine Weyl groups are shown to be of interest in understanding irreducible representations of affine Hecke algebras. Basic knowledge of abstract algebra is enough to read one third of the book. Some knowledge of K-theory, algebraic group, and Kazhdan-Lusztig cell of Cexeter group is useful for the rest

Representation Theory of Algebraic Groups and Quantum Groups

Representation Theory of Algebraic Groups and Quantum Groups PDF Author: Toshiaki Shoji
Publisher: American Mathematical Society(RI)
ISBN:
Category : Computers
Languages : en
Pages : 514

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Book Description
A collection of research and survey papers written by speakers at the Mathematical Society of Japan's 10th International Conference. This title presents an overview of developments in representation theory of algebraic groups and quantum groups. It includes papers containing results concerning Lusztig's conjecture on cells in affine Weyl groups.