2001年, 第14卷, 第4期　刊出日期：2001-10-15

  

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  QUEUEING NETWORKS WITH STRING TRANSITIONS OF MIXED VECTOR ADDITIONS AND VECTOR REMOVALS

  Richard J. Boucherie;Xiu Li CHAO

  Journal of Systems Science and Complexity. 2001, 14(4): 337-355.

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  Product form queueing networks with string transitions have been studied in the literature as a model incorporating several features of the existing networks. That model includes state-dependent transition rates at the cost of a restrictive form of the string transitions:First a sequence of nonnegative vectors is removed,and then a sequence of nonnegative vectors is added to the network state.
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  NATREX AND DETERMINATION OF REAL EXCHANGE RATE OF RMB

  Holger van Eden;Bin LIU;Gerbert Romyn;Xiao Guang YANG

  Journal of Systems Science and Complexity. 2001, 14(4): 356-372.

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  In this paper, we analyze the movements of the real exchange rate in China. Our empirical evidence shows that the purchasing power parity does not hold in the long run, and the real exchange rate is non-stationary. The decomposition of the movements of the real exchange rate is non-stationary.
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  ON-LINE PREEMPTIVE SCHEDULING ON UNIFORM MACHINES

  Yu Zhong ZHANG;Shou Yang WANG;Bo Chen;Shu Xia ZHANG

  Journal of Systems Science and Complexity. 2001, 14(4): 373-377.

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  We address the problem of preemptively schedule on-line jobs on arbitrary m uniformly related machines with the objective of minimizing the schedule length. We provide the first on-line algorithm for this general problem, and show that the algorithm for this general problem,and show that the algorithm has a competitive ratio of 1+\sigma.
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  SEMIPARAMETRIC MODEL SELECTION IN LARGE SAMPLES

  SHI Peide;Hai Yan WANG;Zhong Guo ZHENG

  Journal of Systems Science and Complexity. 2001, 14(4): 378-387.

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  For semiparametric regression model selection, based on a model selection criterion there is no finite order (or number of parameters) of the nonparametric part to be estimated consistently, but there is a finite order (or number of predictor variables) of the linear part to be estimated consistently.
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  A PRIOR ESTIMATE AND EXISTENCE OF POSITIVE SOLUTIONS OF SEMILINEAR ELLIPTIC EQUATION WITH THE THIRD BOUNDARY VALUE PROBLEM

  Yong Geng GU;Tong LIU

  Journal of Systems Science and Complexity. 2001, 14(4): 388-398.

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  This paper is to study semilinear elliptic equation Lu = f(u) in Ω, Ω RN being a smooth bounded domain, with the third boundary value conditions =0, where operator, nonlinear function f(u) increase in the form of up, , We get a prior estimate a
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  A NEW STABILIZED FINITE ELEMENT METHOD FOR SOLVING THE STOKES AND NAVIER-STOKES EQUATIONS PART II. THE NONLINEAR CASE

  Huo Yuan DUAN;Guo Ping LIANG

  Journal of Systems Science and Complexity. 2001, 14(4): 399-412.

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  Following Part I., we study the stabilized finite element method for the incompressible Navier-Stokes equations. It is shown that this new methodology is stable and has an optimal error estimates for all mesh-Peclet number, allowing any combination of velocity and pressure interpolation.
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  LOCAL ASYMPTOTIC PROPERTIES OF HAZARD RATE ESTIMATORS FOR TRUNCATED AND CENSORED DATA

  Liu Quan SUN;Guo Fu WU;Xian Hua WEI

  Journal of Systems Science and Complexity. 2001, 14(4): 413-424.

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  Functional laws of the iterated logarithm are obtained for cumulative hazard processes in the neighborhood of a fixed point when the data are subject to left truncation and right censorship. On the basis of these results the exact rates of pointwise almost sure convergence for various types of kernel hazzard rate estimators are derived.
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  ASYMPTOTIC STABILITY OF VISCOUS SHOCK PROFILE FOR NON-CONVEX SYSTEM OF ONE-DIMENSIONAL VISCOELASTIC MATERIALS WITH BOUNDARY EFFECT

  Hong Xia LIU;Tao PAN

  Journal of Systems Science and Complexity. 2001, 14(4): 425-437.

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  This paper is concerned with the asymptotic behavior of solution to the initial-boundary value problem on the half space R+ for a one-dimensional non-convex system of viscoelastic materials. The initial data has constant state at infinity and the velocity is imposed zero at the boundary x=0.
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  POISSON TRAFFIC PROCESSES IN PURE JUMP MARKOV PROCESSES AND GENERALIZED NETWORKS

  Cheng Xuan CAO;Guang Hui XU

  Journal of Systems Science and Complexity. 2001, 14(4): 438-446.

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  In this paper, we present the conditions under which the traffic processes in a pure jump Markov process with a general state space are Poisson processes, and give a simple proof of PASTA type theorem in Melamed (1982) and Walrand (1988). Furthermore,we consider a generalized network with phase type negative arrivals.