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arXiv 0707.4387math.PR
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具有随机停时和奇异终值条件的倒向随机微分方程

Backward stochastic differential equations with random stopping time and singular final condition

A. Popier

摘要:

本文研究了一类一维倒向随机微分方程(简称BMM):\[Y_t=ξ-\int_{t\wedge τ}^τY_r|Y_r|^q dr-\int_{t\wedge τ}^τZ_r dB_r,\qquad t\geq 0,\]其中$τ$是一个停时,$q$是一个正常数,$ξ$是一个$\mathcal{F}_τ$ -可测随机变量,使得$\mathbf{P}(ξ=+\infty)>0$ .本文研究了在区域$D\subset \mathbb{R}^d$和边界条件为$g$,$g=+\infty$为正Lebesgue测度集上的这些Beschlet问题与Dirichlet问题之间的联系.我们还将我们的结果推广到更一般的情形。

英文摘要:

In this paper we are concerned with one-dimensional backward stochastic differential equations (BSDE in short) of the following type: \[Y_t=ξ-\int_{t\wedge τ}^τY_r|Y_r|^q dr-\int_{t\wedge τ}^τZ_r dB_r,\qquad t\geq 0,\] where $τ$ is a stopping time, $q$ is a positive constant and $ξ$ is a $\mathcal{F}_τ$-measurable random variable such that $\mathbf{P}(ξ=+\infty)>0$. We study the link between these BSDE and the Dirichlet problem on a domain $D\subset \mathbb{R}^d$ and with boundary condition $g$, with $g=+\infty$ on a set of positive Lebesgue measure. We also extend our results for more general BSDE.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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