The Kazhdan-Lusztig Cells in Certain Affine Weyl Groups
Author : Jian-Yi Shi
Publisher : Springer
Page : 318 pages
File Size : 23,49 MB
Release : 2006-11-14
Category : Mathematics
ISBN : 3540397809
Author : Jian-Yi Shi
Publisher : Springer
Page : 318 pages
File Size : 23,49 MB
Release : 2006-11-14
Category : Mathematics
ISBN : 3540397809
Author : Cédric Bonnafé
Publisher : Springer
Page : 350 pages
File Size : 27,84 MB
Release : 2018-05-07
Category : Mathematics
ISBN : 3319707361
This monograph provides a comprehensive introduction to the Kazhdan-Lusztig theory of cells in the broader context of the unequal parameter case. Serving as a useful reference, the present volume offers a synthesis of significant advances made since Lusztig’s seminal work on the subject was published in 2002. The focus lies on the combinatorics of the partition into cells for general Coxeter groups, with special attention given to induction methods, cellular maps and the role of Lusztig's conjectures. Using only algebraic and combinatorial methods, the author carefully develops proofs, discusses open conjectures, and presents recent research, including a chapter on the action of the cactus group. Kazhdan-Lusztig Cells with Unequal Parameters will appeal to graduate students and researchers interested in related subject areas, such as Lie theory, representation theory, and combinatorics of Coxeter groups. Useful examples and various exercises make this book suitable for self-study and use alongside lecture courses. Information for readers: The character {\mathbb{Z}} has been corrupted in the print edition of this book and appears incorrectly with a diagonal line running through the symbol.
Author : Nanhua Xi
Publisher : American Mathematical Soc.
Page : 114 pages
File Size : 29,55 MB
Release : 2002
Category : Mathematics
ISBN : 0821828916
In this paper we prove Lusztig's conjecture on based ring for an affine Weyl group of type $\tilde A_{n-1}$.
Author : Andrzej Skowroński
Publisher : European Mathematical Society
Page : 732 pages
File Size : 40,6 MB
Release : 2008
Category : Representations of algebras
ISBN : 9783037190623
This book is concerned with recent trends in the representation theory of algebras and its exciting interaction with geometry, topology, commutative algebra, Lie algebras, quantum groups, homological algebra, invariant theory, combinatorics, model theory and theoretical physics. The collection of articles, written by leading researchers in the field, is conceived as a sort of handbook providing easy access to the present state of knowledge and stimulating further development. The topics under discussion include diagram algebras, Brauer algebras, cellular algebras, quasi-hereditary algebras, Hall algebras, Hecke algebras, symplectic reflection algebras, Cherednik algebras, Kashiwara crystals, Fock spaces, preprojective algebras, cluster algebras, rank varieties, varieties of algebras and modules, moduli of representations of quivers, semi-invariants of quivers, Cohen-Macaulay modules, singularities, coherent sheaves, derived categories, spectral representation theory, Coxeter polynomials, Auslander-Reiten theory, Calabi-Yau triangulated categories, Poincare duality spaces, selfinjective algebras, periodic algebras, stable module categories, Hochschild cohomologies, deformations of algebras, Galois coverings of algebras, tilting theory, algebras of small homological dimensions, representation types of algebras, and model theory. This book consists of fifteen self-contained expository survey articles and is addressed to researchers and graduate students in algebra as well as a broader mathematical community. They contain a large number of open problems and give new perspectives for research in the field.
Author : Zhexian Wan
Publisher : Springer Science & Business Media
Page : 282 pages
File Size : 20,4 MB
Release : 1996
Category : Mathematics
ISBN : 9780792339892
Hsio-Fu Tuan is a Chinese mathematician who has made important contributions to the theories of both finite groups and Lie groups. He has also had a great influence on the development of algebra, and particularly group theory in China. The present volume consists of a collection of essays on various aspects of group theory written by some of his former students and colleagues in honour of his 80th birthday. The papers contain the main general results, as well as recent ones, on certain topics within this discipline. The chief editor, Zhe-Xian Wan, is a leading algebraist in China.
Author : Anders Bjorner
Publisher : Springer Science & Business Media
Page : 371 pages
File Size : 27,73 MB
Release : 2006-02-25
Category : Mathematics
ISBN : 3540275967
Includes a rich variety of exercises to accompany the exposition of Coxeter groups Coxeter groups have already been exposited from algebraic and geometric perspectives, but this book will be presenting the combinatorial aspects of Coxeter groups
Author : Georgia Benkart
Publisher : American Mathematical Soc.
Page : 270 pages
File Size : 15,9 MB
Release : 2006
Category : Mathematics
ISBN : 0821839241
Covers various aspects of the representation theory of Lie algebras, finite groups of Lie types, Hecke algebras, and Lie super algebras. This book outlines connections among irreducible representations of certain blocks of reduced enveloping algebras of semi-simple Lie algebras in positive characteristic.
Author : Alexander Hahn
Publisher : American Mathematical Soc.
Page : 272 pages
File Size : 36,44 MB
Release : 1989
Category : Mathematics
ISBN : 082185089X
During his lifetime, L. K. Hua played a leading role in and exerted a great influence upon the development in China of modern mathematics, both pure and applied. His mathematical career began in 1931 at Tsinghua University where he continued as a professor for many years. Hua made many significant contributions to number theory, algebra, geometry, complex analysis, numerical analysis, and operations research. In particular, he initiated the study of classical groups in China and developed new matrix methods which, as applied by him as well as his followers, were instrumental in the successful attack of many problems. To honor his memory, a joint China-U.S. conference on Classical Groups and Related Topics was held at Tsinghua University in Beijing in May 1987. This volume represents the proceedings of that conference and contains both survey articles and research papers focusing on classical groups and closely related topics.
Author : Bruce Normansell Allison
Publisher : American Mathematical Soc.
Page : 400 pages
File Size : 12,94 MB
Release : 1995
Category : Mathematics
ISBN : 9780821803110
Representations of Groups contains papers presented at the Canadian Mathematical Society Annual Seminar held in June 1994, in Banff, Alberta, Canada.
Author : Nanhua Xi
Publisher : Springer
Page : 147 pages
File Size : 17,20 MB
Release : 2006-11-15
Category : Mathematics
ISBN : 3540486828
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