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Introduction to Quantum Groups

Autor George Lusztig
en Limba Engleză Paperback – 2 noi 2010

Ne-a atras atenția modul în care Introduction to Quantum Groups abordează subiectul dintr-o perspectivă pur matematică, integrându-l organic în teoria Lie. Capitolul dedicat realizării geometrice a algebrei f marchează un punct de cotitură în text, unde George Lusztig utilizează teoria fasciculelor perverse și a varietăților quiver pentru a fundamenta structurile algebrice discutate. Această abordare riguroasă transformă deformările algebrelor Hopf, introduse inițial de Drinfeld și Jimbo, într-un studiu profund al simetriilor și reprezentărilor. Structura volumului este una progresivă, debutând cu algebra Drinfeld-Jimbo, explorând matricea quasi-R și teoremele de reductibilitate completă, pentru ca în final să detalieze construcția bazelor canonice. Cititorii familiarizați cu A Guide to Quantum Groups de Vyjayanthi Chari vor aprecia aici accentul pus pe metodele geometrice și pe baza canonică, un element central al cercetărilor lui Lusztig, care oferă o profunzime tehnică superioară tratatelor introductive generale. În contextul operei sale, această lucrare consolidează temele explorate în Characters of Reductive Groups over a Finite Field, extinzând utilizarea cohomologiei etale și a intersecției către domeniul grupurilor cuantice. Dacă în lucrările anterioare autorul se concentra pe clasificarea reprezentărilor ireductibile, aici el redefinește fundamentul algebric al acestora prin prisma deformărilor cu parametrul v. Ritmul este dens, specific unui curs de nivel postuniversitar, iar corecțiile aduse în reeditările succesive fac din acest volum un text de referință pentru orice cercetător în algebră.

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Specificații

ISBN-13: 9780817647162
ISBN-10: 0817647163
Pagini: 352
Ilustrații: XIV, 352 p.
Dimensiuni: 159 x 233 x 25 mm
Greutate: 0.54 kg
Ediția:1st ed. 1993. Corr. 2nd printing 1994. 3rd. printing 2010
Editura: BIRKHAUSER BOSTON INC
Locul publicării:Boston, MA, United States

Public țintă

Graduate

De ce să citești această carte

Recomandăm această carte matematicienilor care doresc să înțeleagă grupurile cuantice dincolo de aplicațiile lor în fizică. Cititorul câștigă acces la tehnici geometrice avansate, precum fasciculele perverse, aplicate direct în teoria reprezentării. Este o resursă esențială pentru doctoranzi, oferind o fundamentare teoretică pe care s-a construit o mare parte din algebra modernă post-1990.


Despre autor

George Lusztig este profesor de matematică la Massachusetts Institute of Technology (MIT) și unul dintre cei mai influenți teoreticieni în domeniul teoriei reprezentării. Opera sa este marcată de utilizarea inovatoare a metodelor geometrice în algebră, fiind recunoscut pentru contribuțiile sale fundamentale la studiul grupurilor reductive și al algebrelor Hecke. Lucrările sale, precum Iwahori-Hecke Algebras and their Representation Theory, au pus bazele multor direcții de cercetare actuale în matematică, transformând radical modul în care sunt înțelese simetriile algebrice complexe.


Descriere scurtă

According to Drinfeld, a quantum group is the same as a Hopf algebra. This includes as special cases, the algebra of regular functions on an algebraic group and the enveloping algebra of a semisimple Lie algebra. The qu- tum groups discussed in this book are the quantized enveloping algebras introduced by Drinfeld and Jimbo in 1985, or variations thereof. Although such quantum groups appeared in connection with problems in statistical mechanics and are closely related to conformal field theory and knot theory, we will regard them purely as a new development in Lie theory. Their place in Lie theory is as follows. Among Lie groups and Lie algebras (whose theory was initiated by Lie more than a hundred years ago) the most important and interesting ones are the semisimple ones. They were classified by E. Cartan and Killing around 1890 and are quite central in today's mathematics. The work of Chevalley in the 1950s showed that semisimple groups can be defined over arbitrary fields (including finite ones) and even over integers. Although semisimple Lie algebras cannot be deformed in a non-trivial way, the work of Drinfeld and Jimbo showed that their enveloping (Hopf) algebras admit a rather interesting deformation depending on a parameter v. These are the quantized enveloping algebras of Drinfeld and Jimbo. The classical enveloping algebras could be obtained from them for v —» 1.

Cuprins

THE DRINFELD JIMBO ALGERBRA U.- The Algebra f.- Weyl Group, Root Datum.- The Algebra U.- The Quasi--Matrix.- The Symmetries of an Integrable U-Module.- Complete Reducibility Theorems.- Higher Order Quantum Serre Relations.- GEOMETRIC REALIZATION OF F.- Review of the Theory of Perverse Sheaves.- Quivers and Perverse Sheaves.- Fourier-Deligne Transform.- Periodic Functors.- Quivers with Automorphisms.- The Algebras and k.- The Signed Basis of f.- KASHIWARAS OPERATIONS AND APPLICATIONS.- The Algebra .- Kashiwara’s Operators in Rank 1.- Applications.- Study of the Operators .- Inner Product on .- Bases at ?.- Cartan Data of Finite Type.- Positivity of the Action of Fi, Ei in the Simply-Laced Case.- CANONICAL BASIS OF U.- The Algebra .- Canonical Bases in Certain Tensor Products.- The Canonical Basis .- Inner Product on .- Based Modules.- Bases for Coinvariants and Cyclic Permutations.- A Refinement of the Peter-Weyl Theorem.- The Canonical Topological Basis of .- CHANGE OF RINGS.- The Algebra .- Commutativity Isomorphism.- Relation with Kac-Moody Lie Algebras.- Gaussian Binomial Coefficients at Roots of 1.- The Quantum Frobenius Homomorphism.- The Algebras .- BRAID GROUP ACTION.- The Symmetries of U.- Symmetries and Inner Product on f.- Braid Group Relations.- Symmetries and U+.- Integrality Properties of the Symmetries.- The ADE Case.

Recenzii

From the reviews: "There is no doubt that this volume is a very remarkable piece of work...Its appearance represents a landmark in the mathematical literature."
—Bulletin of the London Mathematical Society
"This book is an important contribution to the field and can be recommended especially to mathematicians working in the field."
—EMS Newsletter
"The present book gives a very efficient presentation of an important part of quantum group theory. It is a valuable contribution to the literature."
—Mededelingen van het Wiskundig
"Lusztig's book is very well written and seems to be flawless...Obviously, this will be the standard reference book for the material presented and anyone interested in the Drinfeld–Jimbo algebras will have to study it very carefully."
—ZAA
"[T]his book is much more than an 'introduction to quantum groups.' It contains a wealth of material. In addition to the many important results (of which several are new–at least in the generality presented here), there are plenty of useful calculations (commutator formulas, generalized quantum Serre relations, etc.)."
—Zentralblatt MATH
“George Lusztig lays out the large scale structure of the discussion that follows in the 348 pages of his Introduction to Quantum Groups. … A significant and important work. … it’s terrific stuff, elegant and deep, and Lusztig presents it very well indeed, of course.” (Michael Berg, The Mathematical Association of America, January, 2011)

Textul de pe ultima copertă

The quantum groups discussed in this book are the quantized enveloping algebras introduced by Drinfeld and Jimbo in 1985, or variations thereof. It is shown that these algebras have natural integral forms that can be specialized at roots of 1 and yield new objects, which include quantum versions of the semi-simple groups over fields of positive characteristic. The theory of quantum groups has led to a new, extremely rigid structure, in which the objects of the theory are provided with canonical bases having rather remarkable properties. This book contains an extensive treatment of the theory of canonical bases in the framework of perverse sheaves. The theory developed in the book includes the case of quantum affine enveloping algebras and, more generally, the quantum analogs of the Kac–Moody Lie algebras.
Introduction to Quantum Groups will be of interest to mathematicians working in the representation theory of Lie groups and Lie algebras, knot theorists, theoretical physicists, and graduate students. Since large parts of the book are independent of the theory of perverse sheaves, the work may also be used as a textbook.
****************************************
There is no doubt that this volume is a very remarkable piece of work...Its appearance represents a landmark in the mathematical literature.
—Bulletin of the London Mathematical Society
This book is an important contribution to the field and can be recommended especially to mathematicians working in the field.
—EMS Newsletter
The present book gives a very efficient presentation of an important part of quantum group theory. It is a valuable contribution to the literature.
—Mededelingen van het Wiskundig
Lusztig's book is very well written and seems to be flawless...Obviously, this will be the standard reference book for the material presented and anyone interested in the Drinfeld–Jimboalgebras will have to study it very carefully.
—ZAA
[T]his book is much more than an 'introduction to quantum groups.' It contains a wealth of material. In addition to the many important results (of which several are new–at least in the generality presented here), there are plenty of useful calculations (commutator formulas, generalized quantum Serre relations, etc.).
—Zentralblatt MATH

Caracteristici

A classical introduction to quantum groups Exercises and open problems included The standard reference book for the material presented Includes supplementary material: sn.pub/extras