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arXiv 1906.08533math.PRcs.NAmath.NA
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球面系综与拟蒙特卡罗方法设计

The spherical ensemble and quasi-Monte-Carlo designs

Robert J. Berman

摘要:

球面系综是二维球面上N个排斥点的著名系综,它可以以各种方式实现(如随机矩阵系综、行列式点过程、库仑气体、量子霍尔态.)。在这里,我们表明,从数值积分的角度来看,球面系综享有近最佳的收敛性能。更准确地说,它示出的数值积分规则对应于N个节点上的二维球采样的球形系综,具有压倒性的概率,几乎是一个拟蒙特卡罗方法设计的意义上的Brauchart-Saff-Sloan-Womersley(任何光滑参数s小于或等于2)。关键成分是一个新的显式浓度的测量不等式的球形系综。

英文摘要:

The spherical ensemble is a well-known ensemble of N repulsive points on the two-dimensional sphere, which can realized in various ways (as a random matrix ensemble, a determinantal point process, a Coulomb gas, a Quantum Hall state...). Here we show that the spherical ensemble enjoys nearly optimal convergence properties from the point of view of numerical integration. More precisely, it is shown that the numerical integration rule corresponding to N nodes on the two-dimensional sphere sampled in the spherical ensemble is, with overwhelming probability, nearly a quasi-Monte-Carlo design in the sense of Brauchart-Saff-Sloan-Womersley (for any smoothness parameter s less than or equal to two). The key ingredient is a new explicit concentration of measure inequality for the spherical ensemble.

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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