Asymptotic estimates of multi-dimensional stable densities and their applications

Watanabe, Toshiro

doi:10.1090/S0002-9947-07-04152-9

Asymptotic estimates of multi-dimensional stable densities and their applications
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Trans. Amer. Math. Soc. 359 (2007), 2851-2879 Request permission

Abstract:

The relation between the upper and lower asymptotic estimates of the density and the fractal dimensions on the sphere of the spectral measure for a multivariate stable distribution is discussed. In particular, the problem and the conjecture on the asymptotic estimates of multivariate stable densities in the work of Pruitt and Taylor in 1969 are solved. The proper asymptotic orders of the stable densities in the case where the spectral measure is absolutely continuous on the sphere, or discrete with the support being a finite set, or a mixture of such cases are obtained. Those results are applied to the moment of the last exit time from a ball and the Spitzer type limit theorem involving capacity for a multi-dimensional transient stable process.

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