arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/0604211math.PRmath.FA
收藏

Wiener空间上的矩问题

The moment problem on the Wiener space

Frederik S Herzberg

摘要:

考虑给定时刻布朗运动多项式向量空间上的连续泛函$\ell$,假设$\ell $与自然意义下的二次变分交换,并考虑有理时刻布朗运动多项式的有限集$f_1(\vec b),...,f_m(\vec b)$,将Wiener空间映射到$\mathbb{R}$ .在精神Schmüdgen的解决方案的有限维矩问题,我们给出了充分条件下$\ell$可以书面的形式$\int \cdot dμ$为某些有限措施$μ$上的维纳空间,使$μ$ -几乎必然,所有的随机变量$f_1(\vec b),...,f_m(\vec b)$是非负的。

英文摘要:

Consider an $L^1$-continuous functional $\ell$ on the vector space of polynomials of Brownian motion at given times, suppose $\ell $ commutes with the quadratic variation in a natural sense, and consider a finite set of polynomials of Brownian motion at rational times, $f_1(\vec b),...,f_m(\vec b)$, mapping the Wiener space to $\mathbb{R}$. In the spirit of Schmüdgen's solution to the finite-dimensional moment problem, we give sufficient conditions under which $\ell$ can be written in the form $\int \cdot dμ$ for some finite measure $μ$ on the Wiener space such that $μ$-almost surely, all the random variables $f_1(\vec b),...,f_m(\vec b)$ are nonnegative.

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。

↑