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Crystal bases for quantum affine algebras and combinatorics of Young walls

Cited 58 time in Web of Science Cited 56 time in Scopus
Authors
Kang, Seok-Jin
Issue Date
2003
Publisher
Oxford University Press
Citation
Proc. London Math. Soc. (3) 86 (2003), 29-69
Keywords
quantum affine algebracrystal basisYoung wall
Abstract
In this paper we give a realization of crystal bases for quantum affine algebras using some new combinatorial objects which we call the Young walls. The Young walls consist of colored blocks with various shapes that are built on a given ground-state wall and can be viewed as generalizations of Young diagrams. The rules for building Young walls and the action of Kashiwara operators are given explicitly in terms of combinatorics of Young walls. The crystal graph of a basic representation is characterized as the set of all reduced proper Young walls. The character of a basic representation can be computed easily by counting the number of colored blocks that have been added to the ground-state wall.
ISSN
0024-6115
Language
English
URI
https://hdl.handle.net/10371/12150
DOI
https://doi.org/10.1112/S0024611502013734
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College of Natural Sciences (자연과학대학)Dept. of Mathematical Sciences (수리과학부)Journal Papers (저널논문_수리과학부)
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