Ergodic decompositions of geometric measures on Anosov homogeneous spaces
Ergodic decompositions of geometric measures on Anosov homogeneous spaces
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Anosov 齐次空间上几何测度的遍历分解
DOI:
10.1007/s11856-023-2560-2
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发表时间:
2020
影响因子:
1
通讯作者:
H. Oh
中科院分区:
文献类型:
--
作者:
Minju M. Lee;H. Oh
Let $G$ be a connected semisimple real algebraic group and $\Gamma$ a Zariski dense Anosov subgroup of $G$. Let $N$ be a maximal horospherical subgroup of $G$ and $P$ the normalizer of $N$ with a fixed Langlands decomposition $P=MAN$. We prove that for any non-trivial $NM$-invariant ergodic and $P$-quasi invariant measure $\mu$ on $\Gamma\backslash G$, $\mu=\sum_{\cal{E}_0\in \mathfrak Y_\Gamma} \mu|_{\cal{E}_0}$ describes the $N$-ergodic decomposition, where $\mathfrak Y_\Gamma$ denotes the collection of all $P^\circ$-minimal subsets of $\Gamma\backslash G$. As a consequence, we deduce that the space of all non-trivial $N$-invariant ergodic and $P^\circ$-quasi-invariant Radon measures on $\Gamma\backslash G$, up to positive constant multiples, is homeomorphic to ${\mathbb R}^{\text{rank}\,G-1}\times \{1,\cdots, \#\mathfrak Y_\Gamma\}$.
影响因子:
2
作者:
Edwards, Samuel;Lee, Minju;Oh, Hee
通讯作者:
Oh, Hee
影响因子:
1.1
作者:
Landesberg, Or;Lee, Minju;Lindenstrauss, Elon;Oh, Hee
通讯作者:
Oh, Hee
影响因子:
1
作者:
Lee, Minju;Oh, Hee
通讯作者:
Oh, Hee