Zobrazeno 1 - 10
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pro vyhledávání: '"Wang, Hua Ming"'
Autor:
Wang, Hua-Ming
Consider a branching process $\{Z_n\}_{n\ge 0}$ with immigration in varying environment. For $a\in\{0,1,2,...\},$ let $C=\{n\ge0:Z_n=a\}$ be the collection of times at which the population size of the process attains level $a.$ We give a criterion to
Externí odkaz:
http://arxiv.org/abs/2308.03614
Autor:
Wang, Hua-Ming
In this paper, we study a transient spatially inhomogeneous random walk with asymptotically zero drifts on the lattice of the positive half line. We give criteria for the finiteness of the number of points having exactly the same local time and/or up
Externí odkaz:
http://arxiv.org/abs/2306.14376
Autor:
Wang, Hua-Ming, Tang, Lanlan
In this paper, we study (1,2) and (2,1) random walks in varying environments on the lattice of positive half line. We assume that the transition probabilities at site $n$ are asymptotically constants as $n\rightarrow\infty.$ For (1,2) random walk, we
Externí odkaz:
http://arxiv.org/abs/2206.09402
In this paper, we consider certain linear-fractional branching processes with immigration in varying environments. For $n\ge0,$ let $Z_n$ counts the number of individuals of the $n$-th generation, which excludes the immigrant which enters into the sy
Externí odkaz:
http://arxiv.org/abs/2205.00490
Autor:
Wang, Hua-Ming, Wang, Lingyun
Publikováno v:
In Stochastic Processes and their Applications March 2025 181
Autor:
Wang, Hua-Ming
Let $M$ and $M_n,n\ge1$ be nonnegative 2-by-2 matrices such that $\lim_{n\rightarrow\infty}M_n=M.$ It is usually hard to estimate the entries of $M_{k+1}\cdots M_{k+n}$ which are useful in many applications. In this paper, under a mild condition, we
Externí odkaz:
http://arxiv.org/abs/2111.10232
Autor:
Wang, Hong-jiang, Ran, Xian-zhe, Wang, Huan-chen, Li, An, Wang, Hai, Cheng, Xu, Tang, Hai-bo, Wang, Hua-ming
Publikováno v:
In Journal of Materials Processing Tech. October 2024 331
Autor:
Wang, Hua-Ming
In this paper we study a 2-type linear-fractional branching process in varying environment with asymptotically constant mean matrices. Let $\nu$ be the extinction time and for $k\ge1$ let $M_k$ be the mean matrix of offspring distribution of individu
Externí odkaz:
http://arxiv.org/abs/2106.01203
Autor:
Wang, Hua-Ming, Yao, Huizi
Consider two-type linear-fractional branching processes in varying environments with asymptotically constant mean matrices. Let $\nu$ be the extinction time. Under certain conditions, we show that both $P(\nu=n)$ and $P(\nu>n)$ are asymptotically the
Externí odkaz:
http://arxiv.org/abs/2007.07840
Autor:
Sun, Hongyan, Wang, Hua-Ming
Let $A_kA_{k-1}\cdots A_1$ be product of some nonnegative 2-by-2 matrices. In general, its elements are hard to evaluate. Under some conditions, we show that $\forall i,j\in\{1,2\},$ $(A_kA_{k-1}\cdots A_1)_{i,j}\sim c\varrho(A_k)\varrho(A_{k-1})\cdo
Externí odkaz:
http://arxiv.org/abs/2004.13440