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arXiv math/0703654math.APmath.PR
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测度的Kolmogorov方程

Kolmogorov equations for measures

Luigi Manca

摘要:

考虑可分希尔伯特空间$H$上一致连续有界函数的巴拿赫空间$C_b(H)$中的算子半群.特别是,我们处理的半群是相关的随机偏微分方程的解决方案,在$H$和不,在一般情况下,强连续的。我们证明了一个涉及这类半群的测度值方程的存在唯一性结果。然后将所得结果应用于$C_b(H)$中的一大类二阶微分算子.

英文摘要:

We consider a semigroup of operators in the Banach space $C_b(H)$ of uniformly continuous and bounded functions on a separable Hilbert space $H$. In particular, we deal with semigroups that are related to solution of stochastic PDEs in $H$ and which are not, in general, strongly continuous. We prove an existence and uniqueness result for a measure valued equation involving this class of semigroups. Then we apply the result to a large class of second order differential operators in $C_b(H)$.

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