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arXiv math/0605700math.DG
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热核在割迹上的小时间渐近性

The small time asymptotics of the heat kernel at the cut locus

Robert Neel

摘要:

我们研究了小时间渐近的梯度和海森的对数热核在割迹,给,原则上,完全展开这两个数量。我们与领导项的扩展的结构的割迹,特别是共轭,我们提供了一个概率的布朗桥的解释。特别是,我们表明,割迹是一组点的Hessian爆破速度超过1/t。我们还研究了分布渐近性,并使用它们来计算能量函数的分布Hessian(即距离函数平方的一半)。

英文摘要:

We study the small time asymptotics of the gradient and Hessian of the logarithm of the heat kernel at the cut locus, giving, in principle, complete expansions for both quantities. We relate the leading terms of the expansions to the structure of the cut locus, especially to conjugacy, and we provide a probabilistic interpretation in terms of the Brownian bridge. In particular, we show that the cut locus is the set of points where the Hessian blows up faster than 1/t. We also study the distributional asymptotics and use them to compute the distributional Hessian of the energy function (that is, one-half the distance function squared).

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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