Hostname: page-component-5c6d5d7d68-wbk2r Total loading time: 0 Render date: 2024-08-12T20:00:45.188Z Has data issue: false hasContentIssue false

Stochastic motions on the 3-sphere governed by wave and heat equations

Published online by Cambridge University Press:  14 July 2016

Enzo Orsingher*
Affiliation:
University of Rome
*
Postal address: Dipartimento di Statistica, Probabilità e Statistiche Applicate, Facoltà di Statistica, Università degli Studi di Roma ‘La Sapienza', Piazzale Aldo Moro 5, 00185 Roma, Italy.

Abstract

In this paper a random motion on the surface of the 3-sphere whose probability law is a solution of the telegraph equation in spherical coordinates is presented. The connection of equations governing the random motion with Maxwell equations is examined together with some qualitative features of its sample paths. Finally Brownian motion on the 3-sphere is derived as the limiting process of a random walk with latitude-changing probabilities.

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 1987 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Bartlett, M. S. (1978) A note on random walks at constant speed. Adv. Appl. Prob. 10, 704707.Google Scholar
[2] Cane, V. R. (1967) Random walks and physical processes. Bull. Internat. Stat. Inst. 42(1), 622640.Google Scholar
[3] Cane, V. R. (1975) Diffusion models with relativity effects. In Perspectives in Probability and Statistics, ed. Gani, J. Applied Probability Trust, Sheffield, 263273.Google Scholar
[4] Ito, K. and Mckean, H. P. (1965) Diffusion Processes and their Sample Paths. Springer-Verlag, Berlin.Google Scholar
[5] Hartman, P. and Watson, G. (1974) “Normal” distribution functions on spheres and the modified Bessel functions. Ann. Prob. 2, 593607.Google Scholar
[6] Karlin, S. and Taylor, H. M. (1981) A Second Course in Stochastic Processes. Academic Press, New York.Google Scholar
[7] Orsingher, E. (1985) Hyperbolic equations arising in random models. Stoch. Proc. Appl. 21, 93106.Google Scholar
[8] Orsingher, E. (1986) A planar random motion governed by the two-dimensional telegraph equation. J. Appl. Prob. 23, 385397.Google Scholar
[9] Yosida, K. (1949) Brownian motion on the surface of the 3-sphere. Ann. Math. Statist. 20, 292296.Google Scholar