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On the Skitovich-Darmois theorem for a-addic solenoids

Abstract : Let $X$ be a compact connected Abelian group. It is well-known that then there exist topological automorphisms $\alpha_j, \beta_j $ of $X$ and independent random variables $\xi_1$ and $\xi_2$ with values in $X$ and distributions $\mu_1, \mu_2$ such that the linear forms $L_1 = \alpha_1\xi_1 + \alpha_2\xi_2$ and $L_2 = \beta_1\xi_1 + \beta_2\xi_2$ are independent, but $\mu_1$ and $\mu_2$ are not represented as convolutions of Gaussian and idempotent distributions. To put this in other words in this case even a weak analogue of the Skitovich-Darmois theorem does not hold. We prove that there exists a compact connected Abelian group such that if we consider three linear forms of three independent random variables taking values in $X$ and the linear forms are independent, then at least one of the distributions is idempotent.
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https://hal.archives-ouvertes.fr/hal-00735592
Contributor : Ivan Mazur <>
Submitted on : Wednesday, October 3, 2012 - 5:56:37 AM
Last modification on : Monday, March 9, 2020 - 6:15:59 PM
Document(s) archivé(s) le : Friday, January 4, 2013 - 3:55:38 AM

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Ivan Mazur. On the Skitovich-Darmois theorem for a-addic solenoids. 2012. ⟨hal-00735592⟩

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