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Maximal inequalities for demimartingales and their applications

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Abstract

In this paper, we establish some maximal inequalities for demimartingales which generalize and improve the results of Christofides. The maximal inequalities for demimartingales are used as key inequalities to establish other results including Doob’s type maximal inequality for demimartingales, strong laws of large numbers and growth rate for demimartingales and associated random variables. At last, we give an equivalent condition of uniform integrability for demisubmartingales.

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References

  1. Esary J, Proschan F, Walkup D. Association of random variables with applications. Ann Math Statist, 38: 1466–1474 (1967)

    Article  MATH  MathSciNet  Google Scholar 

  2. Newman C M, Wright A L. Associated random variables and martingale inequalities. Z Wahrsch Verw Geb, 59: 361–371 (1982)

    Article  MATH  MathSciNet  Google Scholar 

  3. Newman CM. Asymptotic independence and limit theorems for positively and negatively dependent random variables. In: Inequalities in Statistics and Probability (Lincoln, Neb., 1982), IMS Lecture Notes-Monograph Series, 5. Hayward, CA: Inst Math Statist, 1984, 127–140

    Chapter  Google Scholar 

  4. Cox J T, Grimmett G. Central limit theorems for associated random variables and the percolation model. Ann Probab, 12: 514–528 (1984)

    Article  MATH  MathSciNet  Google Scholar 

  5. Birkel T. Moment bounds for associated sequences. Ann Probab, 16: 1184–1193 (1988)

    Article  MATH  MathSciNet  Google Scholar 

  6. Matula P. On the almost sure central limit theorem for associated random variables. Probab Math Statist, 18: 411–416 (1998)

    MATH  MathSciNet  Google Scholar 

  7. Prakasa Rao B L S. Hajek-Renyi-type inequality for associated sequences. Statist Probab Lett, 57: 139–143 (2002)

    Article  MATH  MathSciNet  Google Scholar 

  8. Chow Y S. A martingale inequality and the law of large numbers. Proc Amer Math Soc, 11: 107–111 (1960)

    Article  MATH  MathSciNet  Google Scholar 

  9. Christofides T C. Maximal inequalities for demimartingale and a strong law of large numbers. Statist Probab Lett, 50: 357–363 (2000)

    Article  MATH  MathSciNet  Google Scholar 

  10. Wang J F. Maximal inequalities for associated random variables and demimartingales. Statist Probab Lett, 66: 347–354 (2004)

    Article  MATH  MathSciNet  Google Scholar 

  11. Hu S H. Some new results for the strong law of large numbers (in Chinese). Acta Math Sinica, 46(6): 1123–1134 (2003)

    MATH  MathSciNet  Google Scholar 

  12. Fazekas L, Klesov O. A general approach to the strong law of large numbers. Theory Probab Appl, 45: 436–449 (2000)

    Article  MATH  MathSciNet  Google Scholar 

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Correspondence to XueJun Wang.

Additional information

This work was supported by National Natural Science Foundation of China (Grant Nos. 10871001, 60803059) and the Innovation Group Foundation of Anhui University

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Wang, X., Hu, S. Maximal inequalities for demimartingales and their applications. Sci. China Ser. A-Math. 52, 2207–2217 (2009). https://doi.org/10.1007/s11425-009-0067-x

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  • DOI: https://doi.org/10.1007/s11425-009-0067-x

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