Integral Transforms and Special Functions ( IF 1 ) Pub Date : 2021-07-02 , DOI: 10.1080/10652469.2021.1923707 A. B. Barhoumi 1
We investigate asymptotic behaviour of polynomials satisfying varying non-Hermitian orthogonality relations where and is holomorphic and non-vanishing in a certain neighbourhood in the plane. These polynomials are an extension of so-called kissing polynomials () introduced in Asheim et al. [A Gaussian quadrature rule for oscillatory integrals on a bounded interval. Preprint, 2012 Dec 6. arXiv:1212.1293] in connection with complex Gaussian quadrature rules with uniform good properties in ω. The analysis carried out here is an extension of what was done in Celsus and Silva [Supercritical regime for the kissing polynomials. J Approx Theory. 2020 Mar 18;225:Article ID: 105408]; Deaño [Large degree asymptotics of orthogonal polynomials with respect to an oscillatory weight on a bounded interval. J Approx Theory. 2014 Oct 1;186:33–63], and depends heavily on those works.
中文翻译:
Jacobi 型接吻多项式的强渐近性
我们研究多项式的渐近行为 满足不同的非厄米正交关系 在哪里 和 在平面的某个邻域内是全纯的且不消失。这些多项式是所谓亲吻多项式的扩展() 在 Asheim 等人中介绍。[有界区间振荡积分的高斯求积法则。预印本,2012 年 12 月 6 日。arXiv:1212.1293] 与在ω 中具有均匀良好属性的复杂高斯求积规则有关。这里进行的分析是对 Celsus 和 Silva [亲吻多项式的超临界状态。J 近似理论。2020 年 3 月 18 日;225:文章 ID:105408];Deaño [关于有界区间上的振荡权重的正交多项式的大次渐近。J 近似理论。2014 Oct 1;186:33–63],并且在很大程度上依赖于这些作品。