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Centers of centralizers of nilpotent elements in Lie superalgebras 𝔰𝔩(m|n) or 𝔬𝔰𝔭(m|2n)
Journal of Algebra and Its Applications ( IF 0.5 ) Pub Date : 2020-10-16 , DOI: 10.1142/s0219498822500062
Leyu Han 1
Affiliation  

Let be the simple algebraic supergroup SL(m|n) or 𝔬𝔰𝔭(m|2n) over . Let 𝔤 = Lie() = 𝔤0̄ 𝔤1̄ and let G = (), where is considered as a superalgebra concentrated in even degree. Suppose e 𝔤0̄ is nilpotent. We describe the centralizer 𝔤e of e in 𝔤 and its center 𝔷(𝔤e). In particular, we give bases for 𝔤e, 𝔷(𝔤e) and (𝔷(𝔤e))Ge. We also determine the labeled Dynkin diagram Δ with respect to e and subsequently describe the relation between (𝔷(𝔤e))Ge and Δ.

中文翻译:

李超代数 𝔰𝔩(m|n) 或 𝔬𝔰𝔭(m|2n) 中的幂零元素的中心中心

G是简单的代数超群SL(|n)要么𝔬𝔰𝔭(|2n)超过. 让𝔤 = 说谎(G) = 𝔤0̄ 𝔤1̄然后让G = G(), 在哪里被认为是集中在偶数上的超代数。认为e 𝔤0̄是幂零的。我们描述扶正器𝔤ee𝔤及其中心𝔷(𝔤e). 特别是,我们给出了基础𝔤e,𝔷(𝔤e)(𝔷(𝔤e))Ge. 我们还确定了标记的 Dynkin 图Δ关于e然后描述它们之间的关系(𝔷(𝔤e))GeΔ.
更新日期:2020-10-16
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