arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.08810math.PRq-fin.CP
收藏

γ相关的Ornstein-Uhlenbeck过程及其模拟

Gamma Related Ornstein-Uhlenbeck Processes and their Simulation

Nicola Cufaro Petroni, Piergiacomo Sabino

摘要:

本文研究了两个广义Ornstein-Uhlenbeck过程的分布性质,它们的平稳分布分别为Gamma律和双边Gamma律.这些分布与自分解伽玛和双边伽玛定律有关,并给出了它们的密度和特征函数的封闭形式。因此,这些过程的精确生成算法的优点是显着快于文献中提供的,因此适合于实时模拟。

英文摘要:

We investigate the distributional properties of two generalized Ornstein-Uhlenbeck (OU) processes whose stationary distributions are the gamma law and the bilateral gamma law, respectively. The said distributions turn out to be related to the self-decomposable gamma and bilateral gamma laws, and their densities and characteristic functions are here given in closed-form. Algorithms for the exact generation of such processes are accordingly derived with the advantage of being significantly faster than those available in the literature and therefore suitable for real-time simulations.

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。

↑