稳定分量过程象集的一致测度和一致维数
Uniform Measure and Uniform Dimension Results for the Image of Subset under Processes with Stable Components
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摘要: 令X(t)=(X1(t),…,XN(t))为一d-维过程,其中Xi(t)为αi-阶di-维稳定过程.设0<αn<…<α1≤2,d=d1+…+dN.本文中,我们获得了,当α1≤d1时稳定分量过程X(t)关于Borel集E的象X(E)的Hausdorff测度和Packing测度的一致上界和一致下界,当α1>d1时得到了相应测度的一个一致上界.同时我们给出了一致维数结果。Abstract: LetX(t)=(X1(t),…,XN(t)) be a d-dimensional process, where Xi(t) is a αi,-order stable di-dimensional process. Assume 0<αn<…<α1≤2,d=d1+…+dN. In this paper, when α1 ≤ d1, we obtain the uniform bounds on the Hausdorff and packing measure of the image X(E) of a Borel set E under a process X(t) with stable components. When α1 > d1, the uniform upper is obtained. Uniform dimension theorem is given.