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arXiv 2101.04147math.CA
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Jacobi型Kissing多项式的强渐近性

Strong Asymptotics of Jacobi-Type Kissing Polynomials

Ahmad Barhoumi

摘要:

研究了满足不同非厄米正交关系$$ \int_{-1}^{1} x^kp^ω_n(x)h(x) e^{\mathrm{i} ωx}\mathrm{d} x =0, \quad k\in\{0,\ldots,n-1\}, $$的多项式$p^ω_n(z)$的渐近性态,其中$h(x) = h^*(x) (1 - x)^α (1 + x)^β, \ ω= λn, \ λ\geq 0 $和$h(x)$在平面上的某个邻域内是全纯的且非零的.这些多项式是与$ω$中具有一致良好性质的复高斯求积规则结合引入的所谓接吻多项式($α= β= 0$)的扩展。

英文摘要:

We investigate asymptotic behavior of polynomials $p^ω_n(z)$ satisfying varying non-Hermitian orthogonality relations $$ \int_{-1}^{1} x^kp^ω_n(x)h(x) e^{\mathrm{i} ωx}\mathrm{d} x =0, \quad k\in\{0,\ldots,n-1\}, $$ where $h(x) = h^*(x) (1 - x)^α (1 + x)^β, \ ω= λn, \ λ\geq 0 $ and $h(x)$ is holomorphic and non-vanishing in a certain neighborhood in the plane. These polynomials are an extension of so-called kissing polynomials ($α= β= 0$) introduced in connection with complex Gaussian quadrature rules with uniform good properties in $ω$.

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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