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arXiv 0710.5745math.PRmath.GR
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曲面群上的随机游动:格林函数在谱半径处的边界表现

Random Walk on a Surface Group: Boundary Behavior of the Green's Function at the Spectral Radius

Steven P. Lalley

摘要:

证明了大亏格曲面群上简单随机游动的格林函数在谱半径处指数衰减。我们还证明了安科纳不等式可以推广到谱半径R,因此R势的马丁边界与自然几何边界S ^[1]重合。这意味着格林函数在谱半径处服从指数为1/2的幂律。

英文摘要:

It is proved that the Green's function of the simple random walk on a surface group of large genus decays exponentially at the spectral radius. It is also shown that Ancona's inequalities extend to the spectral radius R, and therefore that the Martin boundary for R-potentials coincides with the natural geometric boundary S^1. This implies that the Green's function obeys a power law with exponent 1/2 at the spectral radius.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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