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arXiv 2203.08428math.PR
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Lévy过程在不同钟下的局部时惩罚

Local time penalizations with various clocks for Lévy processes

Shosei Takeda, Kouji Yano

摘要:

研究了一维Lévy过程按局部时函数加权和归一化的几个长时间极限定理。长时间的限制是通过某些家庭的随机时间,称为时钟:指数时钟,首中时时钟,两点首中时时钟和反本地时间时钟。极限测度可以通过一个由不变函数表示的过程在达到零时被终止的鞅来表征。当原始的Lévy过程是递归的且方差有限时,极限过程可能根据时钟的选择而不同。

英文摘要:

Several long-time limit theorems of one-dimensional Lévy processes weighted and normalized by functions of the local time are studied. The long-time limits are taken via certain families of random times, called clocks: exponential clock, hitting time clock, two-point hitting time clock and inverse local time clock. The limit measure can be characterized via a certain martingale expressed by an invariant function for the process killed upon hitting zero. The limit processes may differ according to the choice of the clocks when the original Lévy process is recurrent and of finite variance.

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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