Hostname: page-component-5c6d5d7d68-wtssw Total loading time: 0 Render date: 2024-08-18T02:33:14.409Z Has data issue: false hasContentIssue false

A convergence property of Dubins' representation of distributions

Published online by Cambridge University Press:  17 April 2009

Shey Shiung Sheu
Affiliation:
Institute of Applied Mathematics, National Tsing Hua University, Hsinchu, Taiwan, 300043, Republic of China
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Let (Xn)n≥1 be a sequence of random variables with zero means and uniformly bounded variences. Let τn be the stopping time defined on a given Brownian motion (Bt)t≥0, B0 = 0, by Dubins' method such that Bn) has the same distribution as Xn. We prove that Xn converging to 0 in distribution implies that τn converges to 0 in probability. Examples are presented to illustrate the result is the best possible.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1988

References

[1]Azéma, J. and Yor, M., ‘Une solution simple au probléme de Skorohod’, Sém. Prob XIII, Lecture Notes in Math 721 (1979), 90115.Google Scholar
[2]Bass, R. F., ‘Skorohod imbedding via stochastic integrals’, Sém. Prob. XVII, Lecture Notes in Math. 986 (1983), 221224.Google Scholar
[3]Chacon, R.V. and Walsh, J.B., ‘One-dimensional potential embedding’, Sém. Prob. X, Lecture Notes in Math. 511 (1976), 1923.Google Scholar
[4]Dubins, L.E., ‘On a theorem of Skorohod’, Ann. Math. Statist. 39 (1968), 20942097.CrossRefGoogle Scholar
[5]Loynes, R.M., ‘Stopping times on Brownian motion: some properties of Root's construction’, Z. Wahrsch. verw. Gebiete 16 (1970), 211218.CrossRefGoogle Scholar
[6]Root, D.H., ‘The existence of certain stopping times on Brownian motion’, Ann. Math. Statist. 40 (1967), 715718.CrossRefGoogle Scholar
[7]Sheu, S.S., ‘Representing a distribution by stopping a Brownian motion: Root's construction’, Bull. Austral. Math. Soc. 34 (1986), 427431.CrossRefGoogle Scholar
[8]Skorohod, A.V., Studies in the Theory of Random Processes (Addison-Wesley, Reading, Mass., 1965).Google Scholar
[9]Vallois, P., ‘Le problème de Skorohod sur R: une approche avec le temps local’, Sém. Prob. XVII, Lecture Notes in Math. 986 (1983), 227239.Google Scholar