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arXiv 0707.1996math.CV
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Nikishin系统Hermite-Padé正交多项式的比渐近性II

Ratio Asymptotic of Hermite-Padé Orthogonal Polynomials for Nikishin Systems. II

Abey López García, Guillermo López Lagomasino

摘要:

我们证明比渐近序列的多个正交多项式的Nikishin系统的措施${\mathcal{N}}(σ_1,...,σ_m)$,使每个$k$,支持$σ_k$由一个区间$\widetildeΔ_k$,$σ_k^{\prime} > 0$几乎处处,和一组没有聚集点在$\mathbb{R} \setminus \widetildeΔ_k$。

英文摘要:

We prove ratio asymptotic for sequences of multiple orthogonal polynomials with respect to a Nikishin system of measures ${\mathcal{N}}(σ_1,...,σ_m)$ such that for each $k$, the support of $σ_k$ consists of an interval $\widetildeΔ_k$, on which $σ_k^{\prime} > 0$ almost everywhere, and a set without accumulation points in $\mathbb{R} \setminus \widetildeΔ_k$.

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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