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关于转移函数的收敛性
引用本文:赵文强,李扬荣.关于转移函数的收敛性[J].数学杂志,2008,28(1):81-84.
作者姓名:赵文强  李扬荣
作者单位:1. 重庆工商大学,理学院,重庆,400067
2. 西南大学,数学与统计学院,重庆,400715
摘    要:本文研究了参数连续Markov链中转移函数的逼近.运用算子半群方法,讨论了q-矩阵的截断矩阵对应Q-函数的收敛问题;引进q-矩阵的Yosida逼近矩阵,证明了任意Q-过程可以由一列有界Q-过程逼近.并给出了最小Q-函数收敛的q-矩阵条件.推广了相关工作.

关 键 词:参数连续Markov链  算子半群  Q-函数  q-矩阵  逼近  转移函数  收敛性  FUNCTIONS  TRANSITION  相关工作  条件  函数收敛  最小  过程  收敛问题  对应  截断矩阵  半群方法  算子  运用  逼近  Markov  参数连续  研究
文章编号:0255-7797(2008)01-0081-04
收稿时间:2005-09-01
修稿时间:2006-04-19

ON THE CONVERGENCE OF TRANSITION FUNCTIONS
ZHAO Wen-qiang,LI Yang-rong.ON THE CONVERGENCE OF TRANSITION FUNCTIONS[J].Journal of Mathematics,2008,28(1):81-84.
Authors:ZHAO Wen-qiang  LI Yang-rong
Abstract:In this paper, we study the approximation of transition functions in continuous-time Markov chains by means of semigroups of linear operators. We discuss the convergence of Q-funetions of the truncated matrices of q-matrix The notion of Yosida approximation of an q-matrix is introduced, therefore we obtain that every Q-process can be approximated by a sequence of bounded Q-processes. Lastly, the condition on q-matrices in order that their minimal Q-functions convergence is presented. These results generalize and develop the recent works.
Keywords:continuous-time Markov chains  semigroups of linear operators  Q-functions q-matrix  approximation
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