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Approximation by N\"orlund means with respect to Vilenkin system in Lebesgue spaces. (arXiv:2312.00810v1 [math.CA]) http://arxiv.org/abs/2312.00810
Approximation by N\"orlund means with respect to Vilenkin system in Lebesgue spaces. (arXiv:2312.00810v1 [math.CA]) http://arxiv.org/abs/2312.00810