Dyson's non-intersecting Brownian motions with a few outliers

dc.creatorAdler, Mark
dc.creatorDelepine, Jonathan
dc.creatorvan Moerbeke, Pierre
dc.date2007-07-03
dc.date2008-11-19
dc.date.accessioned2026-07-07T10:19:16Z
dc.date.available2026-07-07T10:19:16Z
dc.descriptionConsider n non-intersecting particles on the real line (Dyson Brownian motions), all starting from the origin at time=0, and forced to return to x=0 at time=1. For large n, the average mean density of particles has its support, for each 0<t<1, within the interior of an ellipse. The Airy process is defined as the motion of these non-intersecting Brownian motions for large n, but viewed from an arbitrary point on the ellipse with an appropriate space-time rescaling. Assume now a finite number r of these particles are forced to a different target point. Does it affect the Brownian fluctuations along the ellipse for large n? In this paper, we show that no new process appears as long as one considers points on the ellipse, for which the t-coordinate is smaller than the t-coordinate of the point of tangency of the tangent to the curve passing through the target point. At this point of tangency the fluctuations obey a new statistics: the Airy process with r outliers (in short: {\bf r-Airy process}). The log of the transition probability of this new process is given by the Fredholm determinant of a new kernel (extending the Airy kernel) and it satisfies a non-linear PDE in x and the time.
dc.description66 pages. This new version contains an improved statement of Theorem 0.1. It also corrects a number of minor misprints
dc.identifierhttps://arxiv.org/abs/0707.0442
dc.identifierhttp://arxiv.org/abs/0707.0442
dc.identifierCommunication on Pure and Applied Mathematics, 62, issue 3, 334-395 (2009)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174448
dc.subjectProbability
dc.subjectMathematical Physics
dc.subject60G60, 60G65, 35Q53 (Primary) 60G10, 35Q58 (Secondary)
dc.titleDyson's non-intersecting Brownian motions with a few outliers
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