On local CR-transformations of Levi-degenerate group orbits in compact Hermitian symmetric spaces

On local CR-transformations of Levi-degenerate group orbits in compact Hermitian symmetric spaces
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紧埃尔米特对称空间中列维简并群轨道的局域 CR 变换

DOI:
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发表时间:
2004
期刊:
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通讯作者:
D. Zaitsev
D. Zaitsev
中科院分区:
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文献类型:
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作者:
W. Kaup;D. Zaitsev

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我们提出一大类同质$2$非简并CR流形$M$,既具有超曲面类型又具有任意高CR余维数,具有以下属性:$M$中域$U,V$之间的每个CR等价性都扩展到$M$的全局实解析CR自同构。我们证明该类在紧型埃尔米特对称空间 $Z$ 中包含 $G$ 轨道,其中 $G$ 是复李群 $Aut(Z)^{0}$ 的实数形式,并且 $G$ 具有一个开轨道,该开轨道是管型有界对称域。
We present a large class of homogeneous $2$-nondegenerate CR-manifolds $M$, both of hypersurface type and of arbitrarily high CR-codimension, with the following property: Every CR-equivalence between domains $U,V$ in $M$ extends to a global real-analytic CR-automorphism of $M$. We show that this class contains $G$-orbits in Hermitian symmetric spaces $Z$ of compact type, where $G$ is a real form of the complex Lie group $Aut(Z)^{0}$ and $G$ has an open orbit that is a bounded symmetric domain of tube type.