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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Yaglom-type limit theorems for branching Brownian motion with absorption

## Yaglom-type limit theorems for branching Brownian motion with absorptionAdd to your list(s) Download to your calendar using vCal - Jason Schweinsberg (University of California, San Diego)
- Friday 13 July 2018, 14:35-15:20
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact INI IT. RGMW06 - RGM follow up We consider one-dimensional branching Brownian motion in which particles are absorbed at the origin. We assume that when a particle branches, the offspring distribution is supercritical, but the particles are given a critical drift towards the origin so that the process eventually goes extinct with probability one. We establish precise asymptotics for the probability that the process survives for a large time t, improving upon a result of Kesten (1978) and Berestycki, Berestycki, and Schweinsberg (2014). We also prove a Yaglom-type limit theorem for the behavior of the process conditioned to survive for an unusually long time, which also improves upon results of Kesten (1978). An important tool in the proofs of these results is the convergence of branching Brownian motion with absorption to a continuous state branching process. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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