arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.5480math.RTmath.QA
收藏

Weyl模、Demazure模和非单缀型有限晶体

Weyl modules, Demazure modules and finite crystals for non-simply laced type

Katsuyuki Naoi

摘要:

我们表明,每一个Weyl模块的当前代数有一个过滤,其连续的子同构的Demazure模块,和一个张量积的零级基本表示的路径模型是同构的Demazure晶体的不相交的工会。此外,我们表明,Demazure模块出现在这两个对象完全一致。虽然这些结果以前在简单花边的情况下是已知的,他们在非简单花边的情况下是新的。

英文摘要:

We show that every Weyl module for a current algebra has a filtration whose successive quotients are isomorphic to Demazure modules, and that the path model for a tensor product of level zero fundamental representations is isomorphic to a disjoint union of Demazure crystals. Moreover, we show that the Demazure modules appearing in these two objects coincide exactly. Though these results have been previously known in the simply laced case, they are new in the non-simply laced case.

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。

↑