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Another visit to two halflines

Published online by Cambridge University Press:  01 July 2016

G. Hooghiemstra*
Affiliation:
Delft University of Technology
*
∗ Postal address: Faculty of Technical Mathematics and Informatics, Delft University of Technology, P.O. Box 356, 2600 AJ Delft, The Netherlands.
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Abstract

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We shall use three basic properties of Brownian motion to derive in an elegant and non-computational way the probability that standard Brownian motion, starting from 0, will ever cross the halflines t → αt + β or t → γt + δ where γ, δ < 0 < α, β.

Information

Type
Letters to the Editor
Copyright
Copyright © Applied Probability Trust 1989