EXISTENCE AND STABILITY OF CONTINUOUS TIME THRESHOLD ARMA PROCESSES
EXISTENCE AND STABILITY OF CONTINUOUS TIME THRESHOLD ARMA PROCESSES
复制标题
连续时间阈值ARMA过程的存在性和稳定性
DOI:
--
复制
发表时间:
1996
期刊:
影响因子:
--
通讯作者:
P. Brockwell
中科院分区:
文献类型:
--
作者:
O. Stramer;R. Tweedie;P. Brockwell
In this paper we define a class of continuous-time threshold ARMA (CTARMA) processes uniquely in terms of the weak solution of a certain stochastic differential equation, and investigate stability properties of these processes. We ap- ply criteria for stability of weak solutions (see Meyn and Tweedie (1993b), Stramer and Tweedie (1994) and Stramer and Tweedie (1996)) to CTARMA processes and thus obtain criteria for transience, Harris recurrence, positive Harris recurrence and geometric ergodicity for these processes. In order to do this it is shown that CTARMA processes satisfy suitable continuity conditions, and so can be analyzed as ϕ-irreducible T -processes (Meyn and Tweedie (1993b)).