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arXiv 1503.02849math.PR
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跳跃扩散CIR过程的指数遍历性

Exponential ergodicity of the jump-diffusion CIR process

Peng Jin, Barbara Rüdiger, Chiraz Trabelsi

摘要:

本文研究了跳跃扩散CIR过程(JCIR),它是经典CIR模型的推广。JCIR的跳跃是在纯跳跃Lévy过程$(J_t, t \ge 0)$的帮助下引入的。在$(J_t, t \ge 0)$的Lévy测度的适当条件下,得到了JCIR过程转移密度的一个下界.我们也找到了一些充分条件,保证存在的一个Forster-Lyapunov函数的JCIR过程,这使我们能够证明其指数遍历性。

英文摘要:

In this paper we study the jump-diffusion CIR process (shorted as JCIR), which is an extension of the classical CIR model. The jumps of the JCIR are introduced with the help of a pure-jump Lévy process $(J_t, t \ge 0)$. Under some suitable conditions on the Lévy measure of $(J_t, t \ge 0)$, we derive a lower bound for the transition densities of the JCIR process. We also find some sufficient condition guaranteeing the existence of a Forster-Lyapunov function for the JCIR process, which allows us to prove its exponential ergodicity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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