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arXiv 0712.3763math.PRmath.FA
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无穷维Wiener空间的体积

Cubature on Wiener space in infinite dimension

Christian Bayer, Josef Teichmann

摘要:

我们证明了随机偏微分方程的一个随机泰勒展开式,并应用这个结果得到了体积方法,即。e.高阶弱逼近格式,在T. Lyons和N. Victoir我们可以证明一个高阶弱收敛的定义良好的类的检验函数,如果该过程开始于足够正规的初始值。在有限型Lévy过程存在的情况下,我们也可以得到类似的结果,这里的结果即使在有限维上也是新的.几个数值例子被添加。

英文摘要:

We prove a stochastic Taylor expansion for SPDEs and apply this result to obtain cubature methods, i. e. high order weak approximation schemes for SPDEs, in the spirit of T. Lyons and N. Victoir. We can prove a high-order weak convergence for well-defined classes of test functions if the process starts at sufficiently regular initial values. We can also derive analogous results in the presence of Lévy processes of finite type, here the results seem to be new even in finite dimension. Several numerical examples are added.

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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