arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1107.0893math.RT
收藏

Heisenberg和仿射李代数的新不可约模

New Irreducible Modules for Heisenberg and Affine Lie Algebras

Viktor Bekkert, Georgia Benkart, Vyacheslav Futorny, Iryna Kashuba

摘要:

研究Heisenberg李代数上具有任意权重数的非零水平的$\mathbb Z$ -分次模和仿射Kac-Moody李代数上相应的广义loop模.我们在Heisenberg李代数上构造了一类新的不可约模族。我们的主要结果建立了相应的广义loop模的不可约性,为仿射李代数的不可约模提供了许多新的例子。特别地,对于任何函数$ϕ:\mathbb N\rightarrow \{\pm\}$,我们将海森堡李代数上的$ϕ$ -最高权模和仿射李代数上的$ϕ$ -虚韦尔马模关联起来。证明了任何非零水平的$ϕ$ -虚韦尔马模都是不可约的.

英文摘要:

We study $\mathbb Z$-graded modules of nonzero level with arbitrary weight multiplicities over Heisenberg Lie algebras and the associated generalized loop modules over affine Kac-Moody Lie algebras. We construct new families of such irreducible modules over Heisenberg Lie algebras. Our main result establishes the irreducibility of the corresponding generalized loop modules providing an explicit construction of many new examples of irreducible modules for affine Lie algebras. In particular, to any function $ϕ:\mathbb N\rightarrow \{\pm\}$ we associate a $ϕ$-highest weight module over the Heisenberg Lie algebra and a $ϕ$-imaginary Verma module over the affine Lie algebra. We show that any $ϕ$-imaginary Verma module of nonzero level is irreducible.

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。

↑