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arXiv 1702.07100math-phmath.MPmath.PR
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Hermite型矩阵乘积系综与双曲型Harish-Chandra-Itzykson-Zuber积分

Matrix product ensembles of Hermite-type and the hyperbolic Harish-Chandra-Itzykson-Zuber integral

P. J. Forrester, J. R. Ipsen, Dang-Zheng Liu

摘要:

我们调查的Hermitised随机矩阵产品的频谱特性,与以前的产品合奏,允许特征值的完整的实数线。我们证明了本征值形成一个双正交系综,它渐近约化为Hermite Muttalib-Borodin系综。给出了双正交函数和相关核的显式表达式。标度后者附近的原点给出了一个限制内核涉及梅杰G-功能,并计算的功能形式的全球密度。作为这项研究的一部分,我们引入了一个新的矩阵变换,映射到自己的多项式系综空间。这种矩阵变换与所谓的双曲型Harish-Chandra-Itzykson-Zuber积分密切相关。

英文摘要:

We investigate spectral properties of a Hermitised random matrix product which, contrary to previous product ensembles, allows for eigenvalues on the full real line. We prove that the eigenvalues form a bi-orthogonal ensemble, which reduces asymptotically to the Hermite Muttalib-Borodin ensemble. Explicit expressions for the bi-orthogonal functions as well as the correlation kernel are provided. Scaling the latter near the origin gives a limiting kernel involving Meijer G-functions, and the functional form of the global density is calculated. As a part of this study, we introduce a new matrix transformation which maps the space of polynomial ensembles onto itself. This matrix transformation is closely related to the so-called hyperbolic Harish-Chandra-Itzykson-Zuber integral.

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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