The analogue of polar coordinates in the Euclidean space, a polar decomposition in a metric space, if well-defined, can be very useful in dealing with integrals with respect to a sufficiently regular measure. In this note we handle the technical details associated with such polar decompositions. Supplementary Information The online version contains the Armenian language version of the article available at https://doi.org/10.1007/s10958-023-06674-w .
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Avetisyan et al. (2023) studied this question.
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