Very rare events for diffusion processes in short time
Very rare events for diffusion processes in short time
复制标题
短时间内扩散过程非常罕见的事件
DOI:
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发表时间:
2019
期刊:
影响因子:
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通讯作者:
Jing Wang
中科院分区:
文献类型:
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作者:
G. B. Arous;Jing Wang
We study the large deviation estimates for the short time asymptotic behavior of a strongly degenerate diffusion process. Assuming a nilpotent structure of the Lie algebra generated by the driving vector fields, we obtain a graded large deviation principle and prove the existence of those "very rare events". In particular the first grade coincides with the classical Large Deviation Principle.