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首页> 外文期刊>Journal of the Mathematical Society of Japan >Hitting times of Bessel processes, volume of the Wiener sausages and zeros of Macdonald functions
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Hitting times of Bessel processes, volume of the Wiener sausages and zeros of Macdonald functions

机译:贝塞尔工艺的击中时间,维纳香肠的体积和麦克唐纳函数的零

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摘要

We derive formulae for some ratios of the Macdonald functions by using their zeros, which are simpler and easier to treat than known formulae. The result gives two applications in probability theory and one in classical analysis. We show a formula for the Levy measure of the distribution of the first hitting time of a Bessel process and an explicit form for the expected volume of the Wiener sausage for an even dimensional Brownian motion. In addition, we show that the complex zeros of the Macdonald functions are the roots of some algebraic equations with real coefficients.
机译:我们通过使用零值来导出Macdonald函数某些比率的公式,这些公式比已知公式更容易处理。结果在概率论中有两种应用,在古典分析中有一种。我们为贝塞尔过程的第一次命中时间分布的征费度量提供了一个公式,并为维纳香肠的预期体积均匀维数布朗运动提供了一个明确的形式。此外,我们证明了麦克唐纳函数的复零点是某些具有实系数的代数方程的根。

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