摘要翻译:
我们推广了Repetowicz等人的一个结果。关于Wick定理及其应用:首先证明了Wick定理可以推广到球面上的均匀分布,然后推广到整类椭圆分布。然后,作为一个特例,我们详细说明了这一结果的分布是高斯尺度混合。最后,我们证明了这些结果使Folland关于球面上多项式积分的一个定理很容易恢复。
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英文标题:
《An extension of Wick's theorem》
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作者:
C. Vignat and S. Bhatnagar
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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英文摘要:
We propose an extension of a result by Repetowicz et al. about Wick's theorem and its applications: we first show that Wick's theorem can be extended to the uniform distribution on the sphere and then to the whole class of elliptical distributions. Then, as a special case, we detail this result for distributions that are Gaussian scale mixtures. Finally, we show that these results allow to recover easily a theorem by Folland about integration of polynomials over the sphere.
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PDF链接:
https://arxiv.org/pdf/709.1999