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On the Skitovich–Darmois theorem for complex and quaternion random variables
Georgian Mathematical Journal ( IF 0.8 ) Pub Date : 2020-11-07 , DOI: 10.1515/gmj-2020-2076
Gennadiy Feldman 1
Affiliation  

We prove the following theorem. Let α=a+ib be a nonzero complex number. Then the following statements hold: (i) Let either b0 or b=0 and a>0. Let ξ1 and ξ2 be independent complex random variables. Assume that the linear forms L1=ξ1+ξ2 and L2=ξ1+αξ2 are independent. Then ξj are degenerate random variables. (ii) Let b=0 and a<0. Then there exist complex Gaussian random variables in the wide sense ξ1 and ξ2 such that they are not complex Gaussian random variables in the narrow sense, whereas the linear forms L1=ξ1+ξ2 and L2=ξ1+αξ2 are independent.

中文翻译:

关于复数和四元数随机变量的Skitovich-Darmois定理

我们证明以下定理。让α=一种+一世b为非零复数。然后,以下语句成立:(i)任一个b0 要么 b=0一种>0。让ξ1个ξ2是独立的复杂随机变量。假设线性形式 大号1个=ξ1个+ξ2大号2=ξ1个+αξ2是独立的。然后 ξĴ是退化的随机变量。(ii)让b=0一种<0。然后存在广义的复杂高斯随机变量ξ1个ξ2 这样它们在狭义上就不是复杂的高斯随机变量,而线性形式 大号1个=ξ1个+ξ2大号2=ξ1个+αξ2 是独立的。
更新日期:2020-11-09
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