On u-weak stability of coarse isometries between L_p spaces

On u-weak stability of coarse isometries between L_p spaces
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L_p空间粗等距的u弱稳定性

DOI:
10.1007/s13226-021-00178-6
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发表时间:
2022
影响因子:
0.7
通讯作者:
Zhang Jichao
Zhang Jichao
中科院分区:
数学4区
文献类型:
--
作者:
Fang Quanqing;Dai Duanxu;Zhang Jichao

文献摘要

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在本文中,我们研究了自由超滤器的 Banach 空间之间粗等距的稳定性和弱稳定性。因此,对于粗等距(),其中()是两个测度空间,我们证明以下条件是等价的:(i)for any定义的映射是线性等距;(ii)对于any,存在且;(iii)fis-弱稳定;(iv)存在$$\begin{aligned}\Vert Tf(nx)-nx\Vert =o(n)_{{\mathcal {U}}}。 \end{对齐}$$
In this paper, we study-stability and weak-stability of coarse isometries between Banach spaces for a free ultrafilteron. As a result, for a coarse isometry(), where() are two measure spaces, we prove that the following conditions are equivalent:(i)The mappingdefined byfor anyis a linear isometry ;(ii)For any,exists and;(iii)fis-weakly stable;(iv)There exists awithsuch that $$\begin{aligned}\Vert Tf(nx)-nx\Vert =o(n)_{{\mathcal {U}}}. \end{aligned}$$