First Passage Time of Skew Brownian Motion

2010/08/18 by Thilanka Appuhamillage, Daniel Sheldon, Appuhamillage, Thilanka +1
Mathematics · #FOS: Mathematics #Probability (math.PR) #math.PR

paper · pdf · doi:10.48550/arxiv.1008.2989

arxiv created 2011/03/07 · arxiv updated 2011/03/09

Abstract

Nearly fifty years after the introduction of skew Brownian motion by Itô and McKean (1963), the first passage time distribution remains unknown. In this paper, we generalize results of Pitman and Yor (2001) and Csáki and Hu (2004) to derive formulae for the distribution of ranked excursion heights of skew Brownian motion. We then derive the first passage time distribution as a simple corollary.

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