arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2001.03961math.PR
收藏

指数末次渗流的局部平稳性

Local stationarity of exponential last passage percolation

Márton Balázs, Ofer Busani, Timo Seppäläinen

摘要:

我们考虑点到点的最后通过时间的大小为$δN^{\frac{2}{3}}$,距离$N$远离起点的邻域中的每个顶点。这些最后通过时间在这个附近的增量被证明是共同等于他们的固定版本与高概率,仅取决于$δ$。利用这一结果,我们证明了:1)$\text{Airy}_2$过程局部地接近于全变差分布朗运动; 2)从边长为$δN^{\frac{2}{3}}$的盒子中的每个顶点到距离为$N$的点的点到点测地线树在盒子内与同向的无限测地线树一致; 3)从$N^{\frac{2}{3}}$开始彼此远离到距离$N$的点的两条测地线在宏观尺度上不会太靠近任一端点合并。我们的主要结果只依赖于概率方法。

英文摘要:

We consider point to point last passage times to every vertex in a neighbourhood of size $δN^{\frac{2}{3}}$, distance $N$ away from the starting point. The increments of these last passage times in this neighbourhood are shown to be jointly equal to their stationary versions with high probability that depends on $δ$ only. With the help of this result we show that 1) the $\text{Airy}_2$ process is locally close to a Brownian motion in total variation; 2) the tree of point to point geodesics starting from every vertex in a box of side length $δN^{\frac{2}{3}}$ going to a point at distance $N$ agree inside the box with the tree of infinite geodesics going in the same direction; 3) two geodesics starting from $N^{\frac{2}{3}}$ away from each other, to a point at distance $N$ will not coalesce too close to either endpoints on the macroscopic scale. Our main results rely on probabilistic methods only.

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。

↑