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Polyhedral Realizations of Crystal Bases for Quantum Algebras of Finite Types

Quantum Algebra 2009-11-11 v1 Representation Theory

Abstract

Polyhedral realization of crystal bases is one of the methods for describing the crystal base B()B(\infty) explicitly. This method can be applied to symmetrizable Kac-Moody types. We can also apply this method to the crystal bases B(λ)B(\lambda) of integrable highest weight modules and of modified quantum algebras. But, the explicit forms of the polyhedral realizations of crystal bases B()B(\infty) and B(λ)B(\lambda) are only given in the case of arbitrary rank 2, of AnA_n and of An(1)A^{(1)}_n. So, we will give the polyhedral realizations of crystal bases B()B(\infty) and B(λ)B(\lambda) for all simple Lie algebras in this paper.

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Cite

@article{arxiv.math/0507056,
  title  = {Polyhedral Realizations of Crystal Bases for Quantum Algebras of Finite Types},
  author = {Ayumu Hoshino},
  journal= {arXiv preprint arXiv:math/0507056},
  year   = {2009}
}

Comments

27 pages, LaTeX