arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1801.10554math.CA
收藏

二次和$q$ -二次变量的经典正交多项式的结构关系

Structure Relations of Classical Orthogonal Polynomials in the Quadratic and $q$-Quadratic Variable

Maurice Kenfack Nangho, Kerstin Jordaan

摘要:

证明了一元正交多项式序列$\{P_n\}_{n=0}^{\infty}$满足的第一结构关系的存在性、二阶导数$\{\mathbb{D}_{x}^2P_n\}_{n= 2}^{\infty}$的正交性与广义Sturm-Liouville型方程之间的等价性.我们对广义Bochner定理的处理导致差分方程[Vinet L.,Zhedanov A.,J. Comput. 211(2008),45-56],其证明了满足第一结构关系的唯一一元正交多项式是Wilson多项式、连续对偶Hahn多项式、Askey-Wilson多项式以及它们的特殊或极限情况,因为一个或多个参数倾向于$\infty$。这一工作推广了我们以前关于Ismail猜想的结果[arXiv:1711.03349]。对于满足第一种结构关系的多项式,我们还导出了第二种结构关系。

英文摘要:

We prove an equivalence between the existence of the first structure relation satisfied by a sequence of monic orthogonal polynomials $\{P_n\}_{n=0}^{\infty}$, the orthogonality of the second derivatives $\{\mathbb{D}_{x}^2P_n\}_{n= 2}^{\infty}$ and a generalized Sturm-Liouville type equation. Our treatment of the generalized Bochner theorem leads to explicit solutions of the difference equation [Vinet L., Zhedanov A., J. Comput. Appl. Math. 211 (2008), 45-56], which proves that the only monic orthogonal polynomials that satisfy the first structure relation are Wilson polynomials, continuous dual Hahn polynomials, Askey-Wilson polynomials and their special or limiting cases as one or more parameters tend to $\infty$. This work extends our previous result [arXiv:1711.03349] concerning a conjecture due to Ismail. We also derive a second structure relation for polynomials satisfying the first structure relation.

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。

↑