• Title/Summary/Keyword: natural convergence

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ON THE COMPLETE MOMENT CONVERGENCE OF MOVING AVERAGE PROCESSES GENERATED BY ρ*-MIXING SEQUENCES

  • Ko, Mi-Hwa;Kim, Tae-Sung;Ryu, Dae-Hee
    • Communications of the Korean Mathematical Society
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    • v.23 no.4
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    • pp.597-606
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    • 2008
  • Let {$Y_{ij}-{\infty}\;<\;i\;<\;{\infty}$} be a doubly infinite sequence of identically distributed and ${\rho}^*$-mixing random variables with zero means and finite variances and {$a_{ij}-{\infty}\;<\;i\;<\;{\infty}$} an absolutely summable sequence of real numbers. In this paper, we prove the complete moment convergence of {${\sum}^n_{k=1}\;{\sum}^{\infty}_{i=-{\infty}}\;a_{i+k}Y_i/n^{1/p}$; $n\;{\geq}\;1$} under some suitable conditions. We extend Theorem 1.1 of Li and Zhang [Y. X. Li and L. X. Zhang, Complete moment convergence of moving average processes under dependence assumptions, Statist. Probab. Lett. 70 (2004), 191.197.] to the ${\rho}^*$-mixing case.

ON COMPLETE CONVERGENCE OF WEIGHTED SUMS OF ø-MIXING RANDOM VARIABLES WITH APPLICATION TO MOVING AVERAGE PROCESSES

  • Baek, J.I.;Liang, H.Y.;Choi, Y.K.;Chung, H.I.
    • Journal of the Korean Statistical Society
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    • v.33 no.3
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    • pp.271-282
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    • 2004
  • We discuss complete convergence of weighted sums for arrays of ø-mixing random variables. As application, we obtain the complete convergence of moving average processes for ø-mixing random variables. The result of Baum and Katz (1965) as well as the result of Li et al. (1992) on iid case are extended to ø-mixing setting.

ON CONVERGENCE THEOREMS FOR HENSTOCK INTEGRALS

  • Rim, Dong Il;Kim, Won Kyu
    • Journal of the Chungcheong Mathematical Society
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    • v.15 no.1
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    • pp.43-51
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    • 2002
  • In this paper we prove a controlled convergence theorem for the Henstock integral by using the new conditions.

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ALMOST SURE CONVERGENCE FOR WEIGHTED SUMS OF NA RANDOM VARIABLES

  • BAEK J. I.;NIU S. L.;LIM P. K.;AHN Y. Y.;CHUNG S. M.
    • Journal of the Korean Statistical Society
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    • v.34 no.4
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    • pp.263-272
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    • 2005
  • Let {$X_n,\;n{\ge}1$} be a sequence of negatively associated random variables which are dominated randomly by another random variable. We discuss the limit properties of weighted sums ${\Sigma}^n_{i=1}a_{ni}X_i$ under some appropriate conditions, where {$a_{ni},\;1{\le}\;i\;{\le}\;n,\;n\;{\ge}\;1$} is an array of constants. As corollary, the results of Bai and Cheng (2000) and Sung (2001) are extended from the i.i.d. case to not necessarily identically distributed negatively associated setting. The corresponding results of Chow and Lai (1973) also are extended.

ON THE HENSTOCK INTEGRAL

  • Rim, Dong Il;Kim, Won Kyu
    • Journal of the Chungcheong Mathematical Society
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    • v.12 no.1
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    • pp.95-101
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    • 1999
  • In this paper we prove a controlled convergence theorem for the Henstock integral by using new conditions.

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REMARKS ON CONVERGENCE OF INDUCTIVE MEANS

  • PARK, JISU;KIM, SEJONG
    • Journal of applied mathematics & informatics
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    • v.34 no.3_4
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    • pp.285-294
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    • 2016
  • We define new inductive mean constructed by a mean on a complete metric space, and see its convergence when the intrinsic mean is given. We also give many examples of inductive matrix means and claim that the limit of inductive mean constructed by the intrinsic mean is not the Karcher mean, in general.

A Study on Reducing Profile Error of Multi Spindle Control in NC Machine Tools (NC 공작기계(工作機械) 동시다축제어(同時多軸制御)에서의 오차 저감)

  • Park, Jong-Bong
    • Journal of the Korean Society of Industry Convergence
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    • v.3 no.2
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    • pp.115-121
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    • 2000
  • This paper presents reducing method of profile error on a mechanical tuning for multi-spindle control of NC machine tools. To reduce the profile error in the feed drive system, it is useful to adopt same transfer function of multi spindle machine tools. By selecting the correction vector of servo rigidity and natural vibration on JK map, multi spindle control can be tuned by mechanical parameters with small profile error.

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CONVERGENCE OF PARALLEL MULTISPLITTING METHODS USING ILU FACTORIZATIONS

  • Yun, Jae-Heon;Oh, Se-Young;Kim, Eun-Heui
    • Journal of applied mathematics & informatics
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    • v.15 no.1_2
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    • pp.77-90
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    • 2004
  • In this paper, we study the convergence of both relaxed multisplitting method and nonstationary two-stage multisplitting method associated with a multisplitting which is obtained from the ILU factorizations for solving a linear system whose coefficient matrix is an H-matrix. Also, parallel performance results of nonstaionary two-stage multisplitting method using ILU factorizations as inner splittings on the IBM p690 supercomputer are provided to analyze theoretical results.

CONVERGENCE OF MULTISPLITTING METHOD FOR A SYMMETRIC POSITIVE DEFINITE MATRIX

  • YUN JAE HEON;OH SEYOUNG;KIM EUN HEUI
    • Journal of applied mathematics & informatics
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    • v.18 no.1_2
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    • pp.59-72
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    • 2005
  • We study convergence of symmetric multisplitting method associated with many different multisplittings for solving a linear system whose coefficient matrix is a symmetric positive definite matrix which is not an H-matrix.