Original article at: http://www.math.washington.edu/~ejpecp/ECP/viewarticle.php?id=1684

Path transformations of first passage bridges

Jean Bertoin, Universite Pierre et Marie Curie
Loic Chaumont, Universite Pierre et Marie Curie
Jim Pitman, University of California at Berkeley

Abstract

We define the first passage bridge from 0 to $lambda$ as the Brownian motion on the time interval [0,1] conditioned to first hit $lambda$ at time 1. We show that this process may be related to the Brownian bridge, the Bessel bridge or the Brownian excursion via some path transformations, the main one being an extension of Vervaat's transformation. We also propose an extension of these results to certain bridges with cyclically exchangeable increments.

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Original article at: http://www.math.washington.edu/~ejpecp/ECP/viewarticle.php?id=1684