Introduction to Quantum Groups and Crystal Bases ( Graduate Studies in Mathematics )

Publication series :Graduate Studies in Mathematics

Author: Jin Hong;Seok-Jin Kang  

Publisher: American Mathematical Society‎

Publication year: 2002

E-ISBN: 9781470420932

P-ISBN(Paperback): 9780821828748

Subject: O152.5 Lie group

Keyword: Algebra and Algebraic Geometry

Language: ENG

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Introduction to Quantum Groups and Crystal Bases

Description

The notion of a “quantum group” was introduced by V.G. Dinfeldacute and M. Jimbo, independently, in their study of the quantum Yang-Baxter equation arising from 2-dimensional solvable lattice models. Quantum groups are certain families of Hopf algebras that are deformations of universal enveloping algebras of Kac-Moody algebras. And over the past 20 years, they have turned out to be the fundamental algebraic structure behind many branches of mathematics and mathematical physics, such as solvable lattice models in statistical mechanics, topological invariant theory of links and knots, representation theory of Kac-Moody algebras, representation theory of algebraic structures, topological quantum field theory, geometric representation theory, and $C^*$-algebras. In particular, the theory of “crystal bases” or “canonical bases” developed independently by M. Kashiwara and G. Lusztig provides a powerful combinatorial and geometric tool to study the representations of quantum groups. The purpose of this book is to provide an elementary introduction to the theory of quantum groups and crystal bases, focusing on the combinatorial aspects of the theory.

Chapter

Title

Copyright

Contents

Introduction

Chapter 1. Lie Algebras and Hopf Algebras

§1.1. Lie algebras

§1.2. Representations of Lie algebras

§1.3. The Lie algebra sl(2, F)

§1.4. The special linear Lie algebra sl(n, F)

§1.5. Hopf algebras

Exercises

Chapter 2. Kac-Moody Algebras

§2.1. Kac-Moody algebras

§2.2. Classification of generalized Cartan matrices

§2.3. Representation theory of Kac-Moody algebras

§2.4. The category O[sub(int)]

Exercises

Chapter 3. Quantum Groups

§3.1. Quantum groups

§3.2. Representation theory of quantum groups

§3.3. A[sub(1)]-forms

§3.4. Classical limit

§3.5. Complete reducibility of the category O[sup(q)][sub(int)]

Exercises

Chapter 4. Crystal Bases

§4.1. Kashiwara operators

§4.2. Crystal bases and crystal graphs

§4.3. Crystal bases for U[sub(q)](sl[sub(2)]-modules

§4.4. Tensor product rule

§4.5. Crystals

Exercises

Chapter 5. Existence and Uniqueness of Crystal Bases

§5.1. Existence of crystal bases

§5.2. Uniqueness of crystal bases

§5.3. Kashiwara's grand-loop argument

Exercises

Chapter 6. Global Bases

§6.1. Balanced triple

§6.2. Global basis for V(λ)

§6.3. Polarization on U[sup(–)][sub(q)](g)

§6.4. Triviality of vector bundles over P[sup(1)]

§6.5. Existence of global bases

Exercises

Chapter 7. Young Tableaux and Crystals

§7.1. The quantum group U[sub(q)](gl[Sub(n)]

§7.2. The category O[sup(≥0}][sub(int)]

§7.3. Tableaux and crystals

§7.4. Crystal graphs for U[sub(q)](gl[sub(n)]-modules

Exercises

Chapter 8. Crystal Graphs for Classical Lie Algebras

§8.1. Example: U[sub(q)](B[sub(3)]-crystals

§8.2. Realization of U[sub(q)](A[sub(n–1)]-crystals

§8.3. Realization of U[sub(q)](C[sub(n)]-crystals

§8.4. Realization of U[sub(q)](B[sub(n)]-crystals

§8.5. Realization of U[sub(q)](D[sub(n)]-crystals

§8.6. Tensor product decomposition of crystals

Exercises

Chapter 9. Solvable Lattice Models

§9.1. The 6-vertex model

§9.2. The quantum afRne algebra U[sub(q)](sl[sub(2)]

§9.3. Crystals and paths

Exercises

Chapter 10. Perfect Crystals

§10.1. Quantum afflne algebras

§10.2. Energy functions and combinatorial R-matrices

§10.3. Vertex operators for U[sub(q)](sl[sub(2)]-modules

§10.4. Vertex operators for quantum affine algebras

§10.5. Perfect crystals

§10.6. Path realization of crystal graphs

Exercises

Chapter 11. Combinatorics of Young Walls

§11.1. Perfect crystals of level 1 and path realization

§11.2. Combinatorics of Young walls

§11.3. The crystal structure

§11.4. Crystal graphs for basic representations

Exercises

Bibliography

Index of symbols

Index

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

Y

Back Cover

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