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arXiv 1612.08652math.RTmath.QAmath.RA
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$\mathfrak{sl}_{3}$上新的不可约权模族

New families of irreducible weight modules over $\mathfrak{sl}_{3}$

Vyacheslav Futorny, Genqiang Liu, Rencai Lu, Kaiming Zhao

摘要:

令$n>1$为整数,$α\in{\mathbb C}^n$、$b\in{\mathbb C}$和$V$为$\mathfrak{gl}_n$ -模块。利用$n$维环面上向量场李代数上张量场模的限制,定义了$\sl_{n+1}$上的一类权模$F^α_{b}(V)$.本文考虑$n=2$情形,一般地证明了这类5-参数$\mathfrak{sl}_{3}$ -模$F^α_{b}(V)$的不可约性.所有这样的模都有无穷维权空间,并且位于Gelfand-Tsetlin模范畴之外。因此,这种构造产生了新的不可约$\mathfrak{sl}_{3}$ -模族。

英文摘要:

Let $n>1$ be an integer, $α\in{\mathbb C}^n$, $b\in{\mathbb C}$, and $V$ a $\mathfrak{gl}_n$-module. We define a class of weight modules $F^α_{b}(V)$ over $\sl_{n+1}$ using the restriction of modules of tensor fields over the Lie algebra of vector fields on $n$-dimensional torus. In this paper we consider the case $n=2$ and prove the irreducibility of such 5-parameter $\mathfrak{sl}_{3}$-modules $F^α_{b}(V)$ generically. All such modules have infinite dimensional weight spaces and lie outside of the category of Gelfand-Tsetlin modules. Hence, this construction yields new families of irreducible $\mathfrak{sl}_{3}$-modules.

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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