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arXiv 0901.0295math.RTmath.RA
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实直极限群的抛物子群

Parabolic Subgroups of Real Direct Limit Groups

Elizabeth Dan-Cohen, Ivan Penkov, Joseph A. Wolf

摘要:

设$G_R$是一个典型的实直极限李群,$g_R$是它的李代数.复化$g_C$的抛物子代数由前两位作者描述。在本文中,我们将这些结果扩展到$g_R$。这也给出了$G_R$的抛物子群的描述。进一步给出了$G_C$的抛物子群$P_C$与$G_R$相交于抛物子群的几何判据.该准则涉及标志ind-流形$G_C/P_C$的$G_R$ -轨道结构。

英文摘要:

Let $G_R$ be a classical real direct limit Lie group and $g_R$ its Lie algebra. The parabolic subalgebras of the complexification $g_C$ were described by the first two authors. In the present paper we extend these results to $g_R$. This also gives a description of the parabolic subgroups of $G_R$. Furthermore, we give a geometric criterion for a parabolic subgroup $P_C$ of $G_C$ to intersect $G_R$ in a parabolic subgroup. This criterion involves the $G_R$-orbit structure of the flag ind-manifold $G_C/P_C$.

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。

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