On the distribution of ranked heights of excursions of a Brownian bridge
نویسنده
چکیده
The distribution of the sequence of ranked maximum and minimum values attained during excursions of a standard Brownian bridge (Bbr t ; 0 t 1) is described. The height M j of the jth highest maximum over a positive excursion of the bridge has the same distribution as M 1 =j, where the distribution of M 1 = sup0 t 1B br t is given by L evy's formula P (M br+ 1 > x) = e 2x . The probability density of the height M j of the jth highest maximum of excursions of the re ecting Brownian bridge (jB t j; 0 t 1) is given by a modi cation of the known -function series for the density of Mbr 1 = sup0 t 1 jB br t j. These results are obtained from a more general description of the distribution of ranked values of a homogeneous functional of excursions of the standardized bridge of a self-similar recurrent Markov process.
منابع مشابه
ON THE DISTRIBUTION OF RANKED HEIGHTS OF EXCURSIONS OF A BROWNIAN BRIDGE1 By Jim Pitman and Marc Yor
The distribution of the sequence of ranked maximum and minimum values attained during excursions of a standard Brownian bridge Bbr t 0 ≤ t ≤ 1 is described. The height Mbr+ j of the jth highest maximum over a positive excursion of the bridge has the same distribution as Mbr+ 1 /j, where the distribution of Mbr+ 1 = sup0≤t≤1 Bbr t is given by Lévy’s formula P Mbr+ 1 > x = e−2x 2 . The probabilit...
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1 A. Rényi Institute of Mathematics, Hungarian Academy of Sciences, Reáltanoda u. 13–15, P.O.B. 127, Budapest, H–1364, Hungary. Research supported by the Hungarian National Foundation for Scientific Research, Grant No. T 019346 and T 029621. E-mail: [email protected] 2 Laboratoire de Probabilités et Modèles Aléatoires, CNRS UMR–7599, Université Paris VI, Tour 56, 3e étage, 4 Place Jussieu, F–75252...
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