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A stopping time concerning sphere data and its applications

Published online by Cambridge University Press:  01 July 2016

Li-Xing Zhu*
Affiliation:
Institute of Applied Mathematics, Beijing
Ping Cheng*
Affiliation:
Institute of Systems Science, Beijing
Gang Wei*
Affiliation:
Institute of Applied Mathematics, Beijing
Pei-De Shi*
Affiliation:
Institute of Systems Science, Beijing
*
Postal address: Institute of Applied Mathematics, Chinese Academy of Sciences, PO Box 2734, Beijing 100080, People's Republic of China.
∗∗ Postal address: Institute of Systems Science, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.
Postal address: Institute of Applied Mathematics, Chinese Academy of Sciences, PO Box 2734, Beijing 100080, People's Republic of China.
∗∗ Postal address: Institute of Systems Science, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.

Abstract

Denote by A(x) = {a: |aτx| ≦ h} a circle zone on the three-dimensional sphere surface for each given h > 0. For a given integer m, we investigate how many zones chosen randomly are needed to contain at least one of the points on the sphere surface m times. As an application, the lifetime of a sphere roller is investigated. We present empirical formulas for the mean, standard deviation and distribution of the lifetime of the sphere roller. Furthermore, some limit behaviors of the above stopping time are obtained, such as the limit distribution, the law of the iterated logarithm, and the upper and lower bounds of the tail probability with the same convergent order.

Type
Stochastic Geometry and Statistical Applications
Copyright
Copyright © Applied Probability Trust 1996 

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Footnotes

This work is partly supported by the National Natural Science Foundation of China.

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