Irreducible ${\frak{sl}}_2$-decomposition for a highest weight $\widehat{{\frak{sl}}_2}$-module
-
摘要: 本文主要研究仿射李代数$\widehat{{\frak{sl}}_2}$的最高权不可约模$L(\Lambda_0)$.由于3维单李代数${{\frak{sl}}_2}$可以看作$\widehat{{\frak{sl}}_2}$的子李代数, 则$L(\Lambda_0)$自然地成为${{\frak{sl}}_2}$-模.我们给出了$L(\Lambda_0)$作为${{\frak{sl}}_2}$-模的不可约分解.Abstract: In this paper, we study the irreducible highest weight module $L(\Lambda_0)$ of affine Lie algebra $\widehat{{\frak{sl}}_2}$. Since the three-dimensional simple algebra ${\frak{sl}}_2$ is regarded as a Lie subalgebra of $\widehat{{\frak{sl}}_2}$, $L(\Lambda_0)$ naturally becomes a ${{\frak{sl}}_2}$-module. We present the irreducible decomposition of $L(\Lambda_0)$ as a ${{\frak{sl}}_2}$-module.
-
Key words:
- affine Lie algebra /
- module /
- irreducible decomposition
-
[1] FRENKEL I, LEPOWSKY J, MEURMAN A. Vertex operator algebras and the monster[M]. Boston:Academic Press, 1989. [2] KAC V G. Infinite-dimensional Lie algebras[M]. 3rd ed. Cambridge:Cambridge University Press, 1990. [3] LEPOWSKY J, WILSON R. The structure of standard modules, Ⅰ:Universal algebras and the Rogers-Ramanujan identities[J]. Invent Math, 1984(77):199-290. doi: 10.1007/BF01388447
点击查看大图
计量
- 文章访问数: 118
- HTML全文浏览量: 44
- PDF下载量: 295
- 被引次数: 0