フーリエ級数と有理関数と演算子 - 2026/6/15の論文5本

arXiv math.CAの新着論文5本をご紹介します。番組ページ: https://prepridondon.nyoho.jp/channels/math-ca/episodes/2026-06-15/Almost everywhere divergence of Cesaro means of subsequences of Walsh--Paley Fourier partial sumsA remark on Chebyshev rational functions, multipoint Pad\'e approximants and Noise$l^{p}-L^{q}$ boundedness of sequence-to-function Hardy-Littlewood-P\'{o}lya-type operatorsLocal convergence of Sussmann's infinite product for analytic vector fieldsAn explicit formula for Koornwinder moments and Rains' positivity conjecture