{ "id": "2002.04403", "version": "v1", "published": "2020-02-04T07:14:14.000Z", "updated": "2020-02-04T07:14:14.000Z", "title": "On the boundedness of subsequences of Vilenkin-Fejér means on the martingale Hardy spaces", "authors": [ "L-E. Persson", "G. Tephnadze", "G. Tutberidze" ], "comment": "arXiv admin note: substantial text overlap with arXiv:1410.7978, arXiv:1504.05779, arXiv:1504.05974", "categories": [ "math.CA" ], "abstract": "In this paper we characterize subsequences of Fej\\'er means with respect to Vilenkin systems, which are bounded from the Hardy space $H_{p}$ to the Lebesgue space $L_{p},$ for all $0