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arXiv math/0412532math.CAmath-phmath.MP
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具有超八面体对称性的多元正交多项式的渐近性

Asymptotics of multivariate orthogonal polynomials with hyperoctahedral symmetry

J. F. van Diejen

摘要:

给出了一类具有超八面体对称性的多元正交多项式的次数趋于无穷大的渐近性公式。所考虑的多项式的特点是一个因式分解的权函数满足一定的解析假设。作为应用,确定了多元Koornwinder-MacdonaldBC_N型Askey-Wilson多项式的大次渐近性.

英文摘要:

We present a formula describing the asymptotics of a class of multivariate orthogonal polynomials with hyperoctahedral symmetry as the degree tends to infinity. The polynomials under consideration are characterized by a factorized weight function satisfying certain analyticity assumptions. As an application, the large-degree asymptotics of the Koornwinder-Macdonald BC_N-type multivariate Askey-Wilson polynomials is determined.

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