Isometries of probability measures with respect to the total variation distance

被引:7
作者
Dolinar, Gregor [1 ,2 ]
Kuzma, Bojan [2 ,3 ,4 ]
Mitrovic, Dorde [3 ]
机构
[1] Univ Ljubljana, Fac Elect Engn, Trzaska Cesta 25, SI-1000 Ljubljana, Slovenia
[2] IMFM, Jadranska Cesta 19, SI-1000 Ljubljana, Slovenia
[3] Univ Primorska, Glagoljaska 8, SI-6000 Koper, Slovenia
[4] Moscow Ctr Fundamental & Appl Math, Moscow 119991, Russia
关键词
Total variation distance; Distribution function; Isometry; SPACE;
D O I
10.1016/j.jmaa.2021.125829
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We characterize surjective isometries of the total variation distance between various subsets of Borel probability measures. In the case when isometrics are w*-continuous or in the case when their domain consists of measures which are absolutely continuous with respect to a fixed measure, such isometrics are push-forwards, i.e., compositum of a measure with a bijection. When the domain consists of all Borel probability measures, their classification is more involved. (C) 2021 Elsevier Inc. All rights reserved.
引用
收藏
页数:15
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