This book is designed to introduce the reader to the theory of semisimple Lie algebras over an algebraically closed field of characteristic 0, with emphasis on representations. A good knowledge of linear algebra (including eigenvalues, bilinear forms, euclidean spaces, and tensor products of vector spaces) is presupposed, as well as some acquaintance with the methods of abstract algebra. The first four chapters might well be read by a bright undergraduate; however, the remaining three chapters are admittedly a little more demanding. Besides being useful in many parts of mathematics and physics, the theory of semisimple Lie algebras is inherently attractive, combining as it does a certain amount of depth and a satisfying degree of completeness in its basic results. Since Jacobson's book appeared a decade ago, improvements have been made even in the classical parts of the theory. I have tried to incor porate some of them here and to provide easier access to the subject for non-specialists. For the specialist, the following features should be noted: (I) The Jordan-Chevalley decomposition of linear transformations is emphasized, with "toral" subalgebras replacing the more traditional Cartan subalgebras in the semisimple case. (2) The conjugacy theorem for Cartan subalgebras is proved (following D. J. Winter and G. D. Mostow) by elementary Lie algebra methods, avoiding the use of algebraic geometry.
This book provides an elementary introduction to Lie algebras based on a lecture course given to fourth-year undergraduates. The only prerequisite is some linear algebra and an appendix summarizes the main facts that are needed.
Introduction to Lie Algebras and Representation Theory
H/ is a finite linear combination of exponentials eih ;Hi; where each D Á C satisfies jj2 D j C j 2 : From this point, ... H/; then must be in the convex hull of the W -orbit of Cı and must differ from C ı by an element ...
This book addresses Lie groups, Lie algebras, and representation theory.
The monster Lie algebra. We close this section by giving an excellent example of a generalized Kac-Moody algebra and writing down its denominator identity. In B3), Borcherds constructed the monster Lie algebra m from the ...
Contemporary introduction to semisimple Lie algebras; concise and informal, with numerous exercises and examples
This book presents an introduction to the structure and representation theory of modular Lie algebras over fields of positive characteristic.
This book is an expanded version of the lectures given at the Nankai Mathematical Summer School in 1997.
This book starts with the elementary theory of Lie groups of matrices and arrives at the definition, elementary properties, and first applications of cohomological induction, which is a recently discovered algebraic construction of group ...
* First of three independent, self-contained volumes under the general title, "Lie Theory," featuring original results and survey work from renowned mathematicians. * Contains J. C. Jantzen's "Nilpotent Orbits in Representation Theory," and ...