共查询到17条相似文献,搜索用时 46 毫秒
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《高校应用数学学报(A辑)》2020,(1)
应用WOD随机变量序列部分和最大值的Rosenthal型矩不等式,结合三段截尾法,研究了WOD随机变量序列加权部分和最大值的完全收敛性,所得的定理推广和改进了先前相应文献的一些结果. 相似文献
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WOD(widely orthant dependent)随机变量序列是一类非常宽泛的相依随机变量序列,应用WOD随机变量序列部分和的Menshov-Rademacher型不等式,结合五段截尾技术,研究得到了同分布WOD随机变量序列的Sung型加权和的最大值矩完全收敛性定理,推广和改进了已有的文献的一些最新结果.作为主要结果的一个应用,同时考虑了基于WOD误差的非参数回归模型中加权估计的完全相合性的结果,并且通过模拟验证了理论结果的有效性. 相似文献
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蔡光辉项琳章茜 《高校应用数学学报(A辑)》2020,(1):21-28
应用WOD随机变量序列部分和最大值的Rosenthal型矩不等式,结合三段截尾法,研究了WOD随机变量序列加权部分和最大值的完全收敛性,所得的定理推广和改进了先前相应文献的一些结果. 相似文献
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利用END变量的R0senthal型矩不等式,研究了END随机阵列加权和的完全收敛性,给出了证明完全收敛性的一些充分条件.另外,还给出了证明完全收敛性的一个必要条件.所得结果推广了独立变量和若干相依变量的相应结果. 相似文献
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NOD随机变量序列加权和的矩完全收敛性 总被引:1,自引:0,他引:1
讨论了NOD随机变量序列加权和的矩完全收敛性,获得了NOD随机变量序列加权和的矩完全收敛性的充要条件.这些结论显示了矩完全收敛性和矩条件之间的等价关系,同时推广了Wu Qunying(2011)的结果. 相似文献
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兰冲锋 《数学年刊A辑(中文版)》2015,36(4):401-410
在非同分布的情况下,给出了行为ND随机变量阵列加权和的完全收敛性的充分条件,所得结果部分地推广了独立随机变量和NA随机变量的相应结果.作为其应用,获得了ND随机变量序列加权和的Marcinkiewicz-Zygmund型强大数定律. 相似文献
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In this paper we obtain some new results on complete moment convergence for weighted sums of arrays of rowwise NA random variables.Our results improve and extend some well known results from the litera... 相似文献
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NOD随机变量阵列加权乘积和的完全收敛性 总被引:1,自引:0,他引:1
邱德华 《高校应用数学学报(A辑)》2011,26(1):33-40
利用NOD随机变量的性质,研究了行为NOD随机变量阵列加权乘积和的完全收敛性,获得了一些新的结果,所得的结果推广和改进了已知的一些文献中的一系列结果. 相似文献
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Complete and complete moment convergence for weighted sums of widely orthant dependent random variables 总被引:1,自引:0,他引:1
In this paper, we establish a complete convergence result and a complete moment convergence result for weighted sums of widely orthant dependent random variables under mild conditions. As corollaries, the corresponding results for weighted sums of extended negatively orthant dependent random variables are also obtained, which generalize and improve the related known works in the literature. 相似文献
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In the paper, the strong convergence properties for two different weighted sums of negatively orthant dependent(NOD) random variables are investigated. Let {X_n, n ≥ 1}be a sequence of NOD random variables. The results obtained in the paper generalize the corresponding ones for i.i.d. random variables and identically distributed NA random variables to the case of NOD random variables, which are stochastically dominated by a random variable X. As a byproduct, the Marcinkiewicz-Zygmund type strong law of large numbers for NOD random variables is also obtained. 相似文献
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In this paper, we study the complete convergence for weighted sums of linearly negative quadrant dependent (LNQD) random variables based on the exponential bounds. In addition, we present some complete convergence for arrays of rowwise LNQD random variables. 相似文献
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设(Xni:1≤i≤n,n≥1)为行间ND阵列,g(x)是R^+上指数为α的正则变化函数,{αni:1≤i≤n,n≥1}为满足条件max1≤i≤n|ani|=0((g(n))^-1)的实数阵列.本文采用截尾的方法,得到了使ND随机变量阵列加权乘积和完全收敛的条件,并推广了以前学者的结论. 相似文献
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Complete convergence and almost sure convergence of weighted sums of random variables 总被引:6,自引:0,他引:6
Deli Li M. Bhaskara Rao Tiefeng Jiang Xiangchen Wang 《Journal of Theoretical Probability》1995,8(1):49-76
Letr>1. For eachn1, let {X
nk
, –<k<} be a sequence of independent real random variables. We provide some very relaxed conditions which will guarantee
for every >0. This result is used to establish some results on complete convergence for weighted sums of independent random variables. The main idea is that we devise an effetive way of combining a certain maximal inequality of Hoffmann-Jørgensen and rates of convergence in the Weak Law of Large Numbers to establish results on complete convergence of weighted sums of independent random variables. New results as well as simple new proofs of known ones illustrate the usefulness of our method in this context. We show further that this approach can be used in the study of almost sure convergence for weighted sums of independent random variables. Convergence rates in the almost sure convergence of some summability methods ofiid random variables are also established. 相似文献
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We establish some results on the complete moment convergence for weighted sums of widely orthant-dependent (WOD) random variables, which improve and extend the corresponding results of Y. F. Wu, M. G. Zhai, and J. Y. Peng [J. Math. Inequal., 2019, 13(1): 251–260]. As an application of the main results, we investigate the complete consistency for the estimator in a nonparametric regression model based on WOD errors and provide some simulations to verify our theoretical results. 相似文献