arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0710.4464math.RTmath.AG
收藏

对称半单李代数的幂零变换的可拓性

Composantes irréductibles de la variété commutante nilpotente d'une algèbre de Lie symétrique semi-simple

Michael Bulois

摘要:

设θ是半单李代数g的对合,g=k+p是相应的Cartan分解.(g,θ)的幂零交换簇由p的幂零元元(x,y)对组成,使得[x,y]=0.证明了这个簇是等维的,它的不可约分量由p-可分辨元的轨道表示。这个猜想是由A.在(g \times g,θ)的情况下满足,其中θ(x,y)=(y,x)。在这项工作中,我们证明了大量的其他情况下的猜想。

英文摘要:

Let θbe an involution of the semisimple Lie algebra g and g=k+p be the associated Cartan decomposition. The nilpotent commuting variety of (g,θ) consists in pairs of nilpotent elements (x,y) of p such that [x,y]=0. It is conjectured that this variety is equidimensional and that its irreducible components are indexed by the orbits of p-distinguished elements. This conjecture was established by A. Premet in the case (g \times g, θ) where θ(x,y)=(y,x). In this work we prove the conjecture in a significant number of other cases.

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。

↑