Mean-field backward stochastic differential equations and related partial differential equations
Mean-field backward stochastic differential equations and related partial differential equations
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平均场后向随机微分方程及相关偏微分方程
DOI:
10.1016/j.spa.2009.05.002
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发表时间:
2007-11
影响因子:
1.4
通讯作者:
Juan Li
中科院分区:
文献类型:
--
作者:
Shige Peng;Rainer Buckdahn;Juan Li
In [R. Buckdahn, B. Djehiche, J. Li, S. Peng, Mean-field backward stochastic differential equations. A limit approach. Ann. Probab. (2007) (in press). Available online: http://www.imstat.org/aop/future_papers.htm] the authors obtained mean-field Backward Stochastic Differential Equations (BSDE) associated with a mean-field Stochastic Differential Equation (SDE) in a natural way as a limit of a high dimensional system of forward and backward SDEs, corresponding to a large number of “particles” (or “agents”). The objective of the present paper is to deepen the investigation of such mean-field BSDEs by studying them in a more general framework, with general coefficient, and to discuss comparison results for them. In a second step we are interested in Partial Differential Equations (PDE) whose solutions can be stochastically interpreted in terms of mean-field BSDEs. For this we study a mean-field BSDE in a Markovian framework, associated with a McKean–Vlasov forward equation. By combining classical BSDE methods, in particular that of “backward semigroups” introduced by Peng [S. Peng, J. Yan, S. Peng, S. Fang, L. Wu (Eds.), in: BSDE and Stochastic Optimizations; Topics in Stochastic Analysis, Science Press, Beijing (1997) (Chapter 2) (in Chinese)], with specific arguments for mean-field BSDEs, we prove that this mean-field BSDE gives the viscosity solution of a nonlocal PDE. The uniqueness of this viscosity solution is obtained for the space of continuous functions with polynomial growth. With the help of an example it is shown that for the nonlocal PDEs associated with mean-field BSDEs one cannot expect to have uniqueness in a larger space of continuous functions.
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DOI:
10.1007/3-540-28329-3
发表时间:
2006
期刊:
--
影响因子:
--
作者:
D. Rodón
通讯作者:
D. Rodón
影响因子:
--
作者:
Y. Achdou;P. Cardaliaguet;François Delarue;A. Porretta;Filippo Santambrogio
通讯作者:
Y. Achdou;P. Cardaliaguet;François Delarue;A. Porretta;Filippo Santambrogio
DOI:
10.1137/060671954
发表时间:
2007-02
期刊:
SIAM J. Control. Optim.
影响因子:
--
作者:
R. Buckdahn;Juan Li
通讯作者:
R. Buckdahn;Juan Li
影响因子:
6.4
作者:
L. Rogers
通讯作者:
L. Rogers
影响因子:
1.6
作者:
P. Pra;F. Hollander
通讯作者:
P. Pra;F. Hollander