Conjugacy classes of $n$-tuples in Lie algebras and algebraic groups

Conjugacy classes of $n$-tuples in Lie algebras and algebraic groups
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李代数和代数群中 $n$ 元组的共轭类

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发表时间:
1988
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通讯作者:
R. Richardson
R. Richardson
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作者:
R. Richardson

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设G是特征为零的代数闭域F上的约化代数群,L(G)是G的李代数。则G通过内自同构作用在G上,并通过伴随表示作用在L(G)上.通过对角作用,得到了G在n元组空间Gn和L(G)"上的作用.在本文中,我们将证明一些几何性质的轨道G在这些空间的n元组。
Let G be a reductive algebraic group over an algebraically closed field F of characteristic zero and let L(G) be the Lie algebra of G. Then G acts on G by inner automorphisms and it acts on L(G) by the adjoint representation. By taking the diagonal actions, we get actions of G on the spaces of n-tuples G n and L(G)". In this paper we will prove a number of geometric properties of the orbits of G on these spaces of n-tuples.