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Local limits for orthogonal polynomials for varying measures via universality
Journal of Approximation Theory ( IF 0.9 ) Pub Date : 2020-03-03 , DOI: 10.1016/j.jat.2020.105394
Eli Levin , Doron S. Lubinsky

We consider orthogonal polynomials pne2nQn,x for varying measures and use universality limits to prove ”local limits” limnpne2nQn,yjn+zK̃nyjn,yjnpne2nQn,yjnenQnyjnK̃nyjn,yjnz=cosπz.Here yjn is a local maximum point of pnenQn in the ”bulk” of the support, K̃nyjn,yjn is the normalized reproducing kernel, and the limit holds uniformly for z in compact subsets of the plane. We also consider local limits at the ”soft edge” of the spectrum, which involve the Airy function.



中文翻译:

正交多项式的局部极限,用于通过通用性进行变化的量度

我们考虑正交多项式 pñË-2ññX 各种措施并使用普遍性限制来证明“本地限制” ñpñË-2ññÿĴñ+žķ̃ñÿĴñÿĴñpñË-2ññÿĴñË-ññÿĴñķ̃ñÿĴñÿĴñž=cosπž这里 ÿĴñ 是的局部最大值 pñË-ññ 在支持的“批量”中, ķ̃ñÿĴñÿĴñ 是归一化的复制内核,并且对于 ž在平面的紧凑子集中。我们还考虑了频谱的“软边缘”的局部极限,这涉及艾里函数。

更新日期:2020-03-03
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