《Multilevel approximation of backward stochastic differential equations》
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作者:
Dirk Becherer and Plamen Turkedjiev
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最新提交年份:
2014
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英文摘要:
We develop a multilevel approach to compute approximate solutions to backward differential equations (BSDEs). The fully implementable algorithm of our multilevel scheme constructs sequential martingale control variates along a sequence of refining time-grids to reduce statistical approximation errors in an adaptive and generic way. We provide an error analysis with explicit and non-asymptotic error estimates for the multilevel scheme under general conditions on the forward process and the BSDE data. It is shown that the multilevel approach can reduce the computational complexity to achieve precision $\\epsilon$, ensured by error estimates, essentially by one order (in $\\epsilon^{-1}$) in comparison to established methods, which is substantial. Computational examples support the validity of the theoretical analysis, demonstrating efficiency improvements in practice.
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中文摘要:
我们发展了一种多级方法来计算后向微分方程(BSDE)的近似解。我们的多级方案的完全可实现算法沿着细化时间网格序列构造序列鞅控制变量,以自适应和通用的方式减少统计近似误差。在一般条件下,我们对多层格式的前向过程和BSDE数据进行了误差分析,给出了显式和非渐近误差估计。结果表明,与已有的方法相比,多级方法可以降低计算复杂度,以达到由误差估计保证的精度$\\epsilon$,基本上是一个数量级(单位$\\epsilon^{-1}$),这是相当可观的。计算实例支持了理论分析的有效性,证明了在实践中效率的提高。
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分类信息:
一级分类:Mathematics 数学
二级分类:Probability 概率
分类描述:Theory and applications of probability and stochastic processes: e.g. central limit theorems, large deviations, stochastic differential equations, models from statistical mechanics, queuing theory
概率论与随机过程的理论与应用:例如中心极限定理,大偏差,随机微分方程,统计力学模型,排队论
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一级分类:Mathematics 数学
二级分类:Numerical Analysis 数值分析
分类描述:Numerical algorithms for problems in analysis and algebra, scientific computation
分析和代数问题的数值算法,科学计算
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一级分类:Quantitative Finance 数量金融学
二级分类:Computational Finance 计算金融学
分类描述:Computational methods, including Monte Carlo, PDE, lattice and other numerical methods with applications to financial modeling
计算方法,包括蒙特卡罗,偏微分方程,格子和其他数值方法,并应用于金融建模
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