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arXiv 1105.0957math-phmath.MP
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Bessel多项式零点的近似闭式公式

Approximate closed-form formulas for the zeros of the Bessel Polynomials

Rafael G. Campos, Marisol L. Calderon

摘要:

我们找到了贝塞尔多项式y_n(x)的第k个零点z_k=x_k+ iyk的实部和虚部的近似表达式x(k,n)和y(k,n)。为了得到这些封闭形式的公式,我们使用的事实,即定义良好的曲线在复平面上的点是极限点的零点的规范化贝塞尔多项式。因此,这些零点首先通过静电解释公式的实现进行数值计算,然后获得作为k和n的函数的实部和虚部的拟合。证明了当k固定时,所得到的复数x(k,n)+iy(k,n)是O(1/n^2)-收敛于zk的

英文摘要:

We find approximate expressions x(k,n) and y(k,n) for the real and imaginary parts of the kth zero z_k=x_k+i y_k of the Bessel polynomial y_n(x). To obtain these closed-form formulas we use the fact that the points of well-defined curves in the complex plane are limit points of the zeros of the normalized Bessel polynomials. Thus, these zeros are first computed numerically through an implementation of the electrostatic interpretation formulas and then, a fit to the real and imaginary parts as functions of k and n is obtained. It is shown that the resulting complex number x(k,n)+i y(k,n) is O(1/n^2)-convergent to z_k for fixed k

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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