arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.02149math.PR
收藏

论从属关系的范围

On the Range of Subordinators

Mladen Savov

摘要:

在本文中,我们将详细研究从属子的计盒维数。考虑到$X$是一个非减Levy过程,而不是复合泊松过程,我们证明了在极限下,覆盖$(X_s)_{s\leq t}$范围的$δ$大小的盒子的最小数目是a.s.阶为$t/U(δ)$,其中$U$是$X$的势函数。这是一个更精细的结果比在文献中计算的盒计数维的上下指数,其中涉及在对数尺度下的渐近盒数。

英文摘要:

In this note we look into detail at the box-counting dimension of subordinators. Given that $X$ is a non-decreasing Levy process, which is not a compound Poisson process, we show that in the limit, the minimum number of boxes of size $δ$ that cover the range of $(X_s)_{s\leq t}$ is a.s. of order $t/U(δ)$, where $U$ is the potential function of $X$. This is a more refined result than the lower and upper index of the box-counting dimension computed in the literature which deals with the asymptotic number of boxes at logarithmic scale.

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。

↑