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On Low-Dimensional Complex $$\omega $$ ω -Lie Superalgebras
Advances in Applied Clifford Algebras ( IF 1.1 ) Pub Date : 2021-06-19 , DOI: 10.1007/s00006-021-01141-8
Jia Zhou , Liangyun Chen

Let \((g,~[-,-],~\omega )\) be a finite-dimensional complex \(\omega \)-Lie superalgebra. In this paper, we introduce the notions of derivation superalgebra \({\mathrm{Der}}(g)\) and the automorphism group \({\mathrm{Aut}}(g)\) of \((g,~[-,-],~\omega )\). We study \({\mathrm{Der}}^{\omega }(g)\) and \({\mathrm{Aut}}^{\omega }(g)\), which are superalgebra of \({\mathrm{Der}}(g)\) and subgroup of \({\mathrm{Aut}}(g)\), respectively. For any 3-dimensional or 4-dimensional complex \(\omega \)-Lie superalgebra g, we explicitly calculate \({\mathrm{Der}}(g)\) and \({\mathrm{Aut}}(g)\), and obtain Jordan standard forms of elements in the two sets. We also study representation theory of \(\omega \)-Lie superalgebras and give a conclusion that all nontrivial non-\(\omega \)-Lie 3-dimensional and 4-dimensional \(\omega \)-Lie superalgebras are multiplicative, as well as we show that any irreducible respresentation of the 4-dimensional \(\omega \)-Lie superalgebra \(P_{2,k}(k\ne 0,-1)\) is 1-dimensional.



中文翻译:

关于低维复数 $$\omega $$ ω -李超代数

\(((g,~[-,-],~\omega )\)是一个有限维复数\(\omega \) -李超代数。在本文中,我们介绍推导代数的概念\({\ mathrm {明镜}}(G)\)和自同构组\({\ mathrm {AUT}}(G)\)\((克,〜 [-,-],~\omega )\)。我们研究了\({\mathrm{Der}}^{\omega }(g)\)\({\mathrm{Aut}}^{\omega }(g)\),它们是\({\ mathrm{Der}}(g)\)\({\mathrm{Aut}}(g)\) 的子群,分别。对于任何 3 维或 4 维复数\(\omega \) -李超代数g,我们明确计算\({\mathrm{Der}}(g)\)\({\mathrm{Aut}}(g)\),得到两个集合中元素的 Jordan 标准形式。我们还研究了\(\omega \) -Lie 超代数的表示理论,并得出结论:所有非平凡的非\(\omega \) -Lie 3 维和 4 维\(\omega \) -Lie 超代数都是可乘的,以及我们证明 4 维\(\omega \) -李超代数\(P_{2,k}(k\ne 0,-1)\) 的任何不可约表示都是一维的。

更新日期:2021-06-19
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