



Shelf and handling wear to cover and binding, with general signs of previous use. Wear commensurate with age and use. Clean unmarked copy. Creasing visible across spine strip and exterior hinges. Light bumping visible to corners of covers and ends of spine strip. Light scuffing and smudging to covers and spine strip. Secure packaging for safe delivery.
This is an introduction to the theory of affine Lie algebras, to the theory of quantum groups, and to the interrelationships between these two fields that are encountered in conformal field theory. The description of affine algebras covers the classification problem, the connection with loop algebras,...