Tree-valued resampling dynamics Martingale problems and applications
Tree-valued resampling dynamics Martingale problems and applications
复制标题
树值重采样动态鞅问题及应用
DOI:
10.1007/s00440-012-0413-8
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发表时间:
2013
影响因子:
2
通讯作者:
A. Winter
中科院分区:
文献类型:
--
作者:
A. Greven;P. Pfaffelhuber;A. Winter
The measure-valued Fleming–Viot process is a diffusion which models the evolution of allele frequencies in a multi-type population. In the neutral setting the Kingman coalescent is known to generate the genealogies of the “individuals” in the population at a fixed time. The goal of the present paper is to replace this static point of view on the genealogies by an analysis of the evolution of genealogies. We encode the genealogy of the population as an (isometry class of an) ultra-metric space which is equipped with a probability measure. The space of ultra-metric measure spaces together with the Gromov-weak topology serves as state space for tree-valued processes. We use well-posed martingale problems to construct the tree-valued resampling dynamics of the evolving genealogies for both the finite population Moran model and the infinite population Fleming–Viot diffusion. We show that sufficient information about any ultra-metric measure space is contained in the distribution of the vector of subtree lengths obtained by sequentially sampled “individuals”. We give explicit formulas for the evolution of the Laplace transform of the distribution of finite subtrees under the tree-valued Fleming–Viot dynamics.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
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通讯作者:
A. Siri
影响因子:
1.4
作者:
S. Evans;Tye Lidman
通讯作者:
Tye Lidman
影响因子:
2.3
作者:
Evans, Steven N.;Winter, Anita
通讯作者:
Winter, Anita
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
P. Pfaffelhuber;A. Wakolbinger;H. Weisshaupt
通讯作者:
H. Weisshaupt
DOI:
10.1006/eujc.1996.0134
发表时间:
1997
期刊:
Eur. J. Comb.
影响因子:
--
作者:
W. Terhalle
通讯作者:
W. Terhalle