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arXiv 1302.2638math-phmath.MP
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实数和四元数实数Ginibre系综的斜正交多项式及其推广

Skew orthogonal polynomials for the real and quaternion real Ginibre ensembles and generalizations

Peter J. Forrester

摘要:

有一些非厄米特随机矩阵的特殊集合,它们的联合概率密度函数可以显式地写下来,不受旋转的影响,而且它们的特征值形成了一个普费特点过程。对于这些合奏,其中的元素的矩阵是真实的,或真正的四元数,核心的Pfidian是完全确定的某些斜正交多项式,这允许一个表达式的平均数超过特征多项式,和特征多项式乘以跟踪。我们使用舒尔多项式理论,知识的舒尔多项式平均对真正的价值,真正的四元数高斯矩阵,和Selberg积分来评估这些平均值。

英文摘要:

There are some distinguished ensembles of non-Hermitian random matrices for which the joint PDF can be written down explicitly, is unchanged by rotations, and furthermore which have the property that the eigenvalues form a Pfaffian point process. For these ensembles, in which the elements of the matrices are either real, or real quaternion, the kernel of the Pfaffian is completely determined by certain skew orthogonal polynomials, which permit an expression in terms of averages over the characteristic polynomial, and the characteristic polynomial multiplied by the trace. We use Schur polynomial theory, knowledge of the value of a Schur polynomial averaged against real, and real quaternion Gaussian matrices, and the Selberg integral to evaluate these averages.

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