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超退化微分算子的狄利克雷问题

The Dirichlet problem for superdegenerate differential operators

Denis R. Bell, Salah E. -A. Mohammed

摘要:

设$L$是定义在有界光滑欧几里得整环上的无限退化二阶线性算子.在比Hörmander弱的条件下,证明了与$L$相关的狄利克雷问题存在唯一光滑的经典解.证明使用Malliavin演算。目前,似乎没有证据证明这一结果使用经典的分析技术。

英文摘要:

Let $L$ be an infinitely degenerate second-order linear operator defined on a bounded smooth Euclidean domain. Under weaker conditions than those of Hörmander, we show that the Dirichlet problem associated with $L$ has a unique smooth classical solution. The proof uses the Malliavin calculus. At present, there appears to be no proof of this result using classical analytic techniques.

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