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arXiv 2004.07826math.SPmath-phmath.CAmath.MP
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基于三项递推关系II的Christoffel-Darboux核的渐近性质

Asymptotic behaviour of Christoffel-Darboux kernel via three-term recurrence relation II

Grzegorz Świderski, Bartosz Trojan

摘要:

研究了当$0$位于相应周期雅可比矩阵谱的软边时,雅可比参数周期调制的正交多项式.我们确定的正交性措施时,是绝对连续的,我们提供了一个建设性的公式,它的限制图兰决定。其次,我们考虑相关的二阶差分方程的解的渐近性。最后,我们研究了Christoffel-Darboux核的标度极限。

英文摘要:

We study orthogonal polynomials with periodically modulated Jacobi parameters in the case when $0$ lies on the soft edge of the spectrum of the corresponding periodic Jacobi matrix. We determine when the orthogonality measure is absolutely continuous and we provide a constructive formula for it in terms of the limit of Turán determinants. We next consider asymptotics of the solutions of associated second order difference equation. Finally, we study scaling limits of the Christoffel--Darboux kernel.

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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