Growth of the Brownian forest
Growth of the Brownian forest
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布朗森林的生长
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
Matthias Winkel
中科院分区:
文献类型:
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作者:
J. Pitman;Matthias Winkel
Trees in Brownian excursions have been studied since the late 1980s. Forests in excursions of Brownian motion above its past minimum are a natural extension of this notion. In this paper we study a forest-valued Markov process which describes the growth of the Brownian forest. The key result is a composition rule for binary Galton-Watson forests with i.i.d. exponential branch lengths. We give elementary proofs of this composition rule and explain how it is intimately linked with Williams’ decomposition for Brownian motion with drift.