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arXiv math/9906100math.QAmath.COmath.RT
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晶体基的多面体实现与辫型同构

Polyhedral Realizations of Crystal Bases and Braid-type Isomorphisms

Toshiki Nakashima

摘要:

在前半部分,我们回顾了晶体基的多面体实现,在后半部分,我们介绍了一些秩为2的有限型晶体的辫子型同构。利用这种同构,对于半单李代数,我们可以证明在有限秩格中可以得到多面体实现,该有限秩格与相应的外尔群中最长元的长度一致。

英文摘要:

We review the polyhedral realizations of crystal bases in the former half and in the latter half, we introduce braid-type isomorphisms for some rank 2 finite type crystals. Using this isomorphisms, for semi-simple Lie algebra we can show that polyhedral realizations can be obtained in the lattice of finite rank which coincides with the length of the longest element in the associated Weyl group.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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