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设计总体服从正态分布的小批量生产中位数控制图的控制限,首先导出与中位数有关的统计量的分布,然后将中位数标准化,找出标准化中位数的分布和近似正态分布,最后分别基于标准差和极差给出小批量生产中位数控制图作出了讨论,给出了随着样本组数可变的控制界限. 相似文献
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具有渐近平均跟踪性质的系统 总被引:1,自引:0,他引:1
牛应轩 《高校应用数学学报(A辑)》2007,22(4):462-468
简记渐近平均跟踪性质为AASP.对于紧致度量空间上的连续映射f,证明了:(1)f有AASP当且仅当其逆极限空间上的移位映射有AASP;(2)若f有AASP且是等度连续的,则f是极小同胚.此外,讨论了AASP的拓扑共轭不变性. 相似文献
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修理设备可更换且修理有延迟的两不同型部件并联可修系统 总被引:5,自引:0,他引:5
假定部件的寿命服从指数分布,其修理延迟时间和修理时间均服从一般分布,并且修理设备的寿命服从指数分布,其更换时间服从一般分布,利用马尔可夫更新过程理论和一种新的分解方法,研究了修理设备可更换且修理有延迟的两不同型部件并联可修系统,求得了系统和修理设备有关可靠性指标的一系列结果. 相似文献
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非线性映射具误差的迭代序列在Banach空间中的收敛问题 总被引:1,自引:0,他引:1
SunZhaohong NiYongqin HeChang 《高校应用数学学报(英文版)》2004,19(1):81-89
In this paper,the approximation problems of Ishikawa iteration with errors of fixedpoints for asymptotically nonexpansive mappings and asymptotically pseudocontractivemappings in arbitrary real Banach spaces are investigated. Some necessary condition andsufficient condition for the convergence of iterative sequences are given respectively. The resultsthus extend and improve some recent corresponding results. 相似文献
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T. Chan David S. Dean Kalvis M. Jansons L. C. G. Rogers 《Communications in Mathematical Physics》1994,160(2):239-257
We consider various models of polymer conformations using paths of Gaussian processes such as Brownian motion. In each case, the calculation of the law of the moment of inertia of a random polymer structure (which is equivalent to the calculation of the partition function) is reduced to the problem of finding the law of a certain quadratic functional of a Gaussian process. We present a new method for computing the Laplace transforms of these quadratic functionals which exploit their special form via the Ray-Knight Theorem and which does not involve the classical method of eigenvalue expansions. We apply the method to several simple examples, then show how the same techniques can be applied to more complicated cases with the aid of a little excursion theory. 相似文献
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In this letter we present the first estimates of the one-loop self-energy for the Skyrmion on a hypersphere and in the delocalised phase. 相似文献
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本文建立了一类新的更为广泛的非线性离散不等式.所得结果改进并推广了文中的有关结果.并利用所得结果考虑了差分方程Δ2u(n)+f(n,u(n),Δu(n))=0解的渐进性质,其中(n,u,ν)∈N×R×R,N=1,2,…. 相似文献
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ZHANG Rui-feng~ GUO Bo-ling~ Institute of Appl.Math. College of Math.and Inform.Sci. Henan Univ. Kaifeng China Institute of Appl.Phys.and Comput.Math. Beijing China. 《高校应用数学学报(英文版)》2008,23(1):57-64
The long time behavior of solution for Hirota equation with zero order dissipation is studied. The global weak attractor for this system in Hper^k is constructed. And then by exact analysis of the energy equation, it is shown that the global weak attractor is actually the global strong attractor in Hper^k. 相似文献