arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.05394math.PRcond-mat.stat-mechphysics.data-an
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轨道布朗桥的尺寸和形状

Size and shape of tracked Brownian bridges

Abdulrahman Alsolami, James Burridge, Michal Gnacik

摘要:

我们研究了通过不规则跟踪二维布朗桥得到的点集的典型大小和形状。跟踪过程包括在有限时间间隔上观察非齐次泊松过程的到达时间处的路径位置。该观测过程的时变强度是跟踪策略。通过分析跟踪点的回转张量,我们证明了两个定理,涉及跟踪策略的平均回转半径,和非球面性-如何非球面的点集的措施。跟踪的行为可以被解释为观察的过程,或者作为沉积时间衰减的“证据”的过程,例如气味,环境干扰或疾病颗粒。我们提出了不同的策略的例子,并通过模拟探索不同的跟踪点的总数的影响。

英文摘要:

We investigate the typical sizes and shapes of sets of points obtained by irregularly tracking two-dimensional Brownian bridges. The tracking process consists of observing the path location at the arrival times of a non-homogeneous Poisson process on a finite time interval. The time varying intensity of this observation process is the tracking strategy. By analysing the gyration tensor of tracked points we prove two theorems which relate the tracking strategy to the average gyration radius, and to the asphericity -- a measure of how non-spherical the point set is. The act of tracking may be interpreted either as a process of observation, or as process of depositing time decaying "evidence" such as scent, environmental disturbance, or disease particles. We present examples of different strategies, and explore by simulation the effects of varying the total number of tracking points.

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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