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math.CA2022
Some new results for subsequences of Nörlund logarithmic means of Walsh-Fourier series
D. Baramidze, L. -E. Persson, H. Singh +1
We prove that there exists a martingale such that the subsequence of Nörlund logarithmic means with respect to the Walsh system are not bounded in the L…
math.CA2018
Logarithmic means \dots]{On the Nörlund logarithmic means with respect to Vilenkin system in the martingale Hardy space
L. -E. Persson, G. Tephnadze, P. Wall
In this paper we prove and discuss a new divergence result of Nörlund logarithmic means with respect to Vilenkin system in Hardy space