分数Brown 运动驱动的非 Lipschitz随机微分方程 |
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引用本文: | 冉启康.分数Brown 运动驱动的非 Lipschitz随机微分方程[J].纯粹数学与应用数学,2016,32(6):551-561. |
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作者姓名: | 冉启康 |
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作者单位: | 上海财经大学数学学院,上海,200433 |
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基金项目: | 国家自然科学基金(11601306) |
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摘 要: | 讨论了一类带分数Brown 运动的非Lipschitz 增长的随机微分方程适应解的存在唯一性。关于分数 Brown 运动的随机积分有多种定义,本文使用一种广义 Stieltjes积分定义方法,利用这种积分的性质,建立了一类由标准 Brown 运动和一个 Hurst 指数H ∈(1/2,1)的分数Brown 运动共同驱动的、系数为非Lipschitz 增长的随机微分方程适应解的存在唯一性定理。
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关 键 词: | 分数Brown运动 广义Stieltjes积分 非Lipschitz增长的SDE 适应解 |
Non-Lipschitz stochastic differential equations driven by fractional Brownian |
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Abstract: | In this paper, we discuss the existence and uniqueness of a class of non-Lipschitzd stochastic differential equations driven by fractional Brownian motion with Hurst parameter H ∈( 12 , 1). So far, there are several ways to define stochastic integrals with respect to FBM. In this paper, we define stochastic integrals with respect to FBM as a generalized Stieltjes integral. We give a theorem of existence and uniqueness for SDE with coe?cients allowed to have a non-Lipschitzd growth. |
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Keywords: | fractional Brownian motio generalized Stieltjes integral non-Lipschitz stochastic differential equation adapted solution |
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