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Continue to ChatOn the degree of approximation of functions belonging to a Lipschitz class by Hausdorff means of its fourier series - https://avesis.yildiz.edu.tr/yayin/b84f25b3-8d38-450a-b0bc-4be14e714693/on-the-degree-of-approximation-of-functions-belonging-to-a-lipschitz-class-by-hausdorff-means-of-its-fourier-series