Academic Journal of Mathematical Sciences, 2025, 6(2); doi: 10.25236/AJMS.2025.060214.
Yanchun Yi, Shuo Li
College of Mathematics and Statistics, Hengyang Normal University, Hengyang, 421008, China
In probability theory, the convergence of dependent random variables is an extremely crucial concept, Complete moment convergence plays an important role in complete convergence, as it provides a more precise characterization of the convergence rate by incorporating moment conditions. Many scholars have conducted research on classical probability limit theory and achieved significant results. Due to the uncertainty in actual events, limit theory in classical probability spaces is no longer applicable. Therefore, in recent years, the limit theory on nonadditive probabilities or nonlinear expectations is a challenging problem that has attracted many researchers, many scholars have extended their research to sublinear expectation space. In this paper, the weighted sums of Extended Negatively Dependent random variables in the sublinear expectation space are studied. Through making full use of the characteristics of sublinear expectation, some inequalities and local Lipschitz functions, the sufficient conditions for their complete moment convergence are explored. Some conclusions in reference twelve are extended by it from the classical probability spaces to the sublinear expectations space, so some conclusions in the literature are improved.
Extended Negatively Dependence; Complete Moment Convergence; Weighted Sum; Sublinear Expectation
Yanchun Yi, Shuo Li. Complete Moment Convergence for Weighted Sums of Extended Negatively Dependent Random Variables under Sublinear Expectation. Academic Journal of Mathematical Sciences (2025), Vol. 6, Issue 2: 102-112. https://doi.org/10.25236/AJMS.2025.060214.
[1] Peng Shige. G-expectation, G-Brownian motion and related stochastic calculus of Itos type[J]. Stochastic analysis and application, 2007, 2(4):541-567.
[2] Zhang L X. Strong limit theorems for extended independent random variables and extended negatively dependent random variables under sub-linear expectations[J]. Acta Mathematica Scientia, 2022, 42(2): 467-490.
[3] Pan Shuting. Convergence of several types of dependent sequences in sublinear expected spaces [D]. Anqing: Anqing Normal University, 2024.
[4] Mingzhou Xu and Zhenyu Xie, Complete Moment Convergence For Weighted Sums of Negatively Dependent Random Variables Under Sub–Linear Expectations [J]. Journal of mathematical inequalities, 2025, 19(1):211-221.
[5] Mingzhou Xu. On the complete moment convergence of moving average processes generated by negatively dependent random variables under sub-linear expectations [J].AIMS Mathematics, 2024, 9(2): 3369–3385.
[6] Sun Peiyu. Limit properties of several types of dependent sequences under sublinear expectation [D]. Changchun: Jilin University, 2023.
[7] Huang W H, Wu P Y. Strong law of large numbers under moment restrictions in sublinear expectation spaces[J]. Communications in Statistics-Theory and Methods, 2022, 51(24): 8671-8683.
[8] Wu Q Y, Lu J F. Another form of chover's law of the iterated logarithm under sub-linear expectations[J]. Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2020, 114(1): 1-22.
[9] Wu Q Y, Jiang Y Y. Strong law of large numbers and chover’s law of the iterated logarithm under sublinear expectations[J]. Journal of Mathematical Analysis Applications, 2018, 460(1): 252-270.
[10] Hsu P L, Robbins H. Complete convergence and the law of large numbers[J].Proceedings of the National Academy of Sciences of the United States of America.1947, 33(2):25-31.
[11] Chow Y S. On the rate of moment convergence of sample sums and extremes[J].Bulletin of the Institute of Mathematics Academia Sinica, 1988, 16(3):177-201.
[12] Yi Y C, Qiu D H, Chen P Y. Complete moment convergence for weighted sums of extended negatively dependent random variables [J]. Communications in Statistics-Theory and Methods, 2017, 46(20): 10189-10202.