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arXiv 1504.01778math.PR
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n维布朗运动的极大极小

Minimax of an n-dimensional Brownian motion

Konstantin Tikhomirov, Pierre Youssef

摘要:

对于某些绝对常数$c$,$n_0$和任何$n\geq n_0$,我们证明了当概率接近1时,$n$维布朗运动${\rm conv}\{BM_n(t):\, t\in[1,2^{cn}]\}$的凸包不包含原点.结果可以解释为高斯过程$\{ \langle \bar{u},BM_n(t)\rangle,\, \bar{u}\in S^{n-1},\, t\in [1,2^{cn}]\}$的极小极大的估计。

英文摘要:

For some absolute constants $c$, $n_0$ and any $n\geq n_0$, we show that with probability close to one the convex hull of the $n$-dimensional Brownian motion ${\rm conv}\{BM_n(t):\, t\in[1,2^{cn}]\}$ does not contain the origin. The result can be interpreted as an estimate of the minimax of the Gaussian process $\{ \langle \bar{u},BM_n(t)\rangle,\, \bar{u}\in S^{n-1},\, t\in [1,2^{cn}]\}$.

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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